Menazon
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Menazon
structure -
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CAS No:
78-57-9
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Formula:
C6H12N5O2PS2
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Chemical Name:
Menazon
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Synonyms:
Phosphorodithioic acid,S-[(4,6-diamino-1,3,5-triazin-2-yl)methyl] O,O-dimethyl ester;Phosphorodithioic acid,S-[(4,6-diamino-s-triazin-2-yl)methyl] O,O-dimethyl ester;PP.175;R 15,175;Azidithion;2,4-Diamino-6-dimethoxyphosphinothionylthiomethyl-s-triazine;S-[(4,6-Diamino-s-triazine-2-yl)methyl] O,O-dimethyl phosphorodithioate;S-(4,6-Diamino-1,3,5-triazin-2-ylmethyl) O,O-dimethyl phosphorodithioate;S-(4,6-Diamino-1,3,5-triazin-2-ylmethyl) dimethyl phosphorothiolothionate;O,O-Dimethyl S-(4,6-diamino-s-triazin-2-ylmethyl)phosphorodithioate;O,O-Dimethyl S-(4,6-diamino-1,3,5-triazin-2-yl)methyl phosphorothiolothionate;Menazon;Sayfos;Sayphos;S-[(4,6-Diamino-s-triazin-2-yl)methyl]-O,O-dimethyl phosphorodithioate
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CAS No:
Description
Off-white solid.Slightly soluble in water and organic solvents.
Menazon is a member of triazines.
Characteristics
167
1.83250
1.548g/cm3
164-166 °C
503.2ºC at 760 mmHg
1.681
In water, 240 mg/l at 20 deg C
Pesticides of any degree of toxicity should be transported in containers which are clearly labelled, leak-proof, and not easily damaged. They should never be transported /or stored/ beside, or above any type of food, and all spillages should be immediately reported. /Pesticides/
9.75X10-7 mm Hg at 25 deg C
Oral-rat LD50: 890 mg/kg; Oral-Mouse LD50: 427 mg/kg
Decompose toxic phosphorus oxide, sulfur oxide, nitrogen oxide gas by heating
LITTLE OR NO ODOR
pKa=3.8
DECOMP 160-162 °C|It is decomp by strong acids and lyes|FORMS CRYSTALLINE PICRATE, HYDROCHLORIDE & DIHYDROGEN CITRATE|MERCAPTAN-LIKE ODOR /TECHNICAL PRODUCT/
Safety Information
3
22-52/53
61
Xn
The warehouse is ventilated, low temperature and dry; stored and transported separately from food materials
SOLID IS STABLE @ TEMP UP TO 50 DEG C
P264, P270, P273, P301+P312, P330, P501
H302
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.|Hydrolysis: Mix menazon with lime and sand or other adsorbent in a pit or trench at least 0.5 m deep in a clay soil. Soda ash can be added to the mixture to help speed the reactions when lime is used as the main alkali. Recommendable methods: Incineration & landfill. Peer-review: Large amt: Incinerate in a unit with effluent gas scrubbing (Peer-review conclusions of an IRPTC expert consultation (May 1985))|All organic pesticides, whether of botanical or synthetic origin, can be destroyed by incineration. /Organic pesticides/|Manufacturers or formulators of very large amounts of pesticides may find it advantageous to build incinerators adequate to destroy all organic pesticides and equipped with scrubbers to remove acid wastes. /Organic pesticides/
|Warning|H302: Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P273, P301+P312, P330, and P501|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|Aggregated GHS information provided by 3 companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|P264, P270, P301+P312, P330, and P501
Respiratory protection (supplied-air respirator with full facepiece or self-contained breathing apparatus) should be available where these compounds are manufactured or used and should be worn in case of emergency and overexposure. /Phosphorus compounds/|WORKERS HANDLING AND APPLYING ORGANOPHOSPHATE PESTICIDES (OPP) MUST ... BE GIVEN PERSONAL PROTECTIVE EQUIPMENT COMPRISING OVERALLS MADE OF A TIGHT FABRIC OR POLYVINYL CHLORIDE, GLOVES, AND RUBBER BOOTS. THEY MUST WEAR A RESPIRATOR WITH AN ACTIVATED-CARBON GAS FILTER CARTRIDGE AFFORDING PROTECTION FOR A DETERMINED NUMBER OF WORKING HOURS. THE EYES SHOULD BE PROTECTED BY GOGGLES. THE SIGNALMEN FOR AERIAL DUSTING OPERATIONS SHOULD BE EQUIPPED WITH A HAT AND CAPE MADE OF POLYVINYL CHLORIDE OR A FABRIC IMPREGNATED WITH A WATER REPELLENT. /PESTICIDES, ORGANOPHOSPHORUS/
If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use "alcohol" foam, carbon dioxide or dry chemical. /Organophosphorus pesticides, liquid, NOS/|If material on fire or involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Use "alcohol" foam, carbon dioxide or dry chemical. /Organophosphorus pesticides, solid, NOS/
In some situations where personnel may become accidently contaminated ... it is necessary to provide shower bath in addition to the usual washing facilities. Special arrangements for cleaning clothing & overalls may be necessary ... /Pesticides/|Special aircraft should preferably be used for spraying or dusting toxic organophosphorus pesticides. ... aerial spraying or dusting gives rise to clouds which spread over larger surfaces than clouds produced by ground application. Aerial spraying should therefore be carried out on windless days only. Residential areas, water supply sources, etc must be avoided. ... When aircraft approaches, signalmen /guiding the aircraft/ should leave the windward side. ... The local population should be informed about the site & time of aerial pesticide treatment. Access of unauthorized persons & especially children to the area to be treated must be ... forbidden. Warning signs should be placed at the limits of the area. Ground spraying must be carried out with compressed-air spraying equipment towed by tractors with closed cabs. /Organophosphorus pesticides/|Small packages of pesticides are preferable for individual application in order to limit the quantities to be weighed & metered. A special vessel with long stirring rod for dilution & suspension of the poison must be available in order to reduce manual handling to a minimum. The strict observance of hygiene rules--no smoking & no food intake during work. Thorough washing with soap after work, changing protective clothing before going home--is of utmost importance. /Organophosphorus pesticides/|Containers ... should be cleaned with a suspension of bleaching powder in water or with other alkaline soln after soaking for 24 hr and then be rinsed with hot water. /Organophosphorus pesticides/|For more Preventive Measures (Complete) data for MENAZON (8 total), please visit the HSDB record page.
No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.
Toxicity
moderately toxic
.../MENAZON/ CAN CAUSE PARALYTIC EFFECTS IN ATROPINIZED HENS...EFFECTS OCCUR WITHIN 24 HR OF EXPOSURE & HENS RECOVER IN ABOUT A MONTH.|Some phenothiazines may antagonize & some may potentiate the toxic anticholinesterase effects of ... /organophosphorus insecticides/. /Organophosphate cholinesterase inhibitors/|In long term therapy, adrenocorticoids antagonize the antiglaucoma effects of anticholinesterases (incr ocular pressure). ... Anticholinergics antagonize the miotic (antiglaucoma) & other muscarinic effects of anticholinesterases on the autonomic & central nervous systems. Tricyclic antidepressants (anticholinergic effects) antagonize the antiglaucoma (miotic) effects of anticholinesterases in glaucoma. ... Antihistamines with anticholinergic effects antagonize the miotic (antiglaucoma) & CNS effects of anticholinesterases. Anticholinesterases potentiate tranquilizing & behavioral changes induced by antihistamines. The actions of anticholinesterase agents on autonomic effector cells, & to some extent those on CNS, are antagonized by atropine, an antidote of choice. Barbiturates are potentiated by anticholinesterases. ... Dexpanthenol potentiates the effects of anticholinesterases. Fluorophosphate insecticides potentiate the effects of other anticholinesterases. /Anticholinesterases/|BARBITURATES ARE POTENTIATED BY ANTICHOLINESTERASES. ALTHOUGH BARBITURATES MAY BE USED CAUTIOUSLY IN TREATING CONVULSIONS, EXTREME CARE IS ESSENTIAL IN HANDLING POISONINGS DUE TO ANTICHOLINESTERASES, PARTICULARLY ORGANOPHOSPHORUS PESTICIDES. ECHOTHIOPHATE, A CHOLINESTERASE INHIBITOR USED AS MIOTIC, POTENTIATES OTHER SUCH INHIBITORS ... USED FOR OTHER PURPOSES (ADDITIVE EFFECTS) OR POSSIBLY SYNERGISTIC. THOSE EXPOSED TO ORGANOPHOSPHATE INSECTICIDES MUST TAKE STRICT PRECAUTIONS. ... ORGANOPHOSPHORUS INSECTICIDES: ADDITIVE ANTICHOLINESTERASE EFFECTS. HAZARDOUS. PATIENTS ON ANTICHOLINESTERASES (EVEN TOPICAL, SUCH AS EYE DROPS) SHOULD AVOID AREAS WHERE ORGANOPHOSPHORUS INSECTICIDES ... RECENTLY ... USED. /ANTICHOLINESTERASE/|ANTICHOLINESTERASE (ORGANOPHOSPHORUS) INSECTICIDES ANTAGONIZE POLARIZING MUSCLE RELAXANTS. PHENOTHIAZINES /AND THIOXANTHENES/: ... MAY ENHANCE TOXIC EFFECTS OF ORGANOPHOSPHORUS INSECTICIDES. /INSECTICIDES, ORGANOPHOSPHORUS/
LD50 Rat female oral 1950 mg/kg
Work ... must not be carried out by young persons under 18 yr, expectant or nursing mothers, or persons for whom work with toxic chemicals is contraindicated on account of their state of health; the same applies to alcoholics. Contraindications for work with organophosphorus pesticides are organic diseases of the CNS, mental disorders & epilepsy, pronounced endocrine & vegetative disorders, pulmonary tuberculosis, bronchial asthma, chronic respiratory diseases, cardiovascular diseases and circulatory disorders, gastrointestinal diseases (peptic ulcer), gastroenterocolitis, diseases of the liver & kidneys, eye diseases (chronic conjunctivitis and keratitis). /Organophosphorus pesticides/
If Menazon is used as an insecticide and acaricide(1) and as a systemic aphicide(2), then it will be released to the environment(SRC).
TERRESTRIAL FATE: Based on a recommended classification scheme(1), an estimated Koc value of 210(SRC), determined from a measured water solubility(2) and a recommended regression-derived equation(3), indicates that Menazon will have moderate mobility in soil(SRC). Based on limited data, Menazon is expected to biodegrade in soil(SRC). A half-life of 23 days was measured for Menazon (at 10 ppm) in a sandy loam soil; Menazon at 250 ppm disappeared at a similar rate(4). Volatilization of Menazon should not be important from moist soil surfaces(SRC) given an estimated Henry's Law constant of 1.5X10-9 atm-cu m/mole(SRC), calculated from experimental values for vapor pressure(5) and water solubility(2). Volatilization from dry soil surfaces(SRC) is not expected based on a measured vapor pressure of 9.75X10-7 mm Hg(4). This compound is expected to photodegrade on soil surfaces; in sunlight, Menazon photooxidizes with the conversion of the P:S group to P:O with a decomposition half-life of 10.5 hours(6).|AQUATIC FATE: Based on a recommended classification scheme(1), an estimated Koc value of 210(SRC), determined from a measured water solubility(2) and a recommended regression-derived equation(1), indicates that Menazon may adsorb to suspended solids and sediment in water(SRC). Based on limited data from soil studies, Menazon may biodegrade in water(SRC). A half-life of 23 days was measured for Menazon (at 10 ppm) in a sandy loam soil; Menazon at 250 ppm disappeared at a similar rate(3). Menazon should not volatilize from water surfaces based on an estimated Henry's Law constant of 1.5X10-9 atm-cu m/mole(SRC), calculated from experimental values for vapor pressure(4) and water solubility(2). An estimated BCF value of 30(1,SRC), from a measured water solubility(2), suggests that Menazon may moderately bioconcentrate in aquatic organisms(SRC), according to a recommended classification scheme(5).|ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), Menazon, which has an estimated vapor pressure of 9.75X10-7 mm Hg at 25 °C(2), will exist in both the vapor and particulate phases in the ambient atmosphere. Vapor-phase Menazon is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be about 5 hours(3,SRC). Particulate-phase Menazon may be physically removed from the air by wet and dry deposition(SRC).
The rate constant for the vapor-phase reaction of Menazon with photochemically produced hydroxyl radicals has been estimated as 7.8X10-11 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1,SRC). This corresponds to an atmospheric half-life of about 5 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1,SRC). A hydrolysis half-life of 27.6 hours was measured for Menazon in ethanol, pH 6.0, at 70 °C; at 20 °C, hydrolysis rates in water are usually hundreds of times slower(2). Menazon has a pKa of 3.8(3). In sunlight, Menazon photooxidizes with the conversion of the P:S group to P:O with a decomposition half-life of 10.5 hours(4). On the surface of treated pea leaves, Menazon was rapidly converted to the oxygen analog(5).
An estimated BCF value of 30 was calculated for Menazon(SRC), using a measured water solubility(1) and a recommended regression-derived equation(2). According to a classification scheme(3), this BCF value suggests that bioconcentration in aquatic organisms is moderate, not high(SRC).
The Koc of Menazon is estimated as approximately 210(SRC), using a measured water solubility of 240 mg/l(1) and a regression-derived equation(2,SRC). According to a recommended classification scheme(3), this estimated Koc value suggests that Menazon has moderate mobility in soil(SRC). Menazon penetrated in small amounts, to about 15 cm depth, when applied to the soil surface(4).
The Henry's Law constant for Menazon is estimated as 1.5X10-9 atm-cu m/mole(SRC) from its experimental values for vapor pressure, 9.75X10-7 mm Hg(1), and water solubility, 240 mg/l(2). This value indicates that Menazon will be essentially nonvolatile from water surfaces(3,SRC). Menazon's values for vapor pressure(1) and Henry's Law constant(1,2,SRC) indicate that volatilization from dry and moist soil surfaces should not occur(SRC).
Occupational exposure to Menazon may be through ingestion and inhalation of vapors or droplets, or by absorption through the skin(1).
Drug Information
AFTER AN ORAL DOSE OF (14)C-LABELED MENAZON TO RATS, 80% OF LABEL APPEARED IN URINE WITHIN 24 HR.|Most organophosphate compounds are ... absorbed from skin, conjunctiva, gastrointestinal tract, & lung. /Organophosphate compounds/|The rate of dermal absorption /of organophosphorus pesticides/ may be ... influenced by the solvent used. /Organophosphorus pesticides/|Many of the organophosphorus insecticides are excreted in the milk ... /Organophosphorus insecticides/|For more Absorption, Distribution and Excretion (Complete) data for MENAZON (7 total), please visit the HSDB record page.
80% OF AN ORAL DOSE OF MENAZON...IS EXCRETED IN THE 24-HR URINE OF TREATED RATS. /METABOLITES FOUND IN URINE INCLUDE 2-METHYLSULFINYLMETHYL-4,6-DIAMINO-S-TRIAZINE & 2-HYDROXYMETHYL-4,6-DIAMINO-S-TRIAZINE/.|/AFTER ORAL ADMIN OF LABELED MENAZON TO RATS 4 CMPD/...& THREE UNIDENTIFIED CMPD WERE...OBSERVED /IN URINE/. IT WAS FELT THAT MENAZON OR ITS OXON ANALOG WAS HYDROLYZED & THEN METHYLATED TO GIVE THE METHYLTHIOTRIAZINE. THIS WAS THEN OXIDIZED TO THE SULFOXIDE.|Plasma and tissue enzymes are responsible for hydrolysis /of organophosphorus compounds/ to the corresponding phosphoric and phosphonic acids. However, oxidative enzymes are also involved in the metabolism of some organophosphorus compounds. /Anticholinesterase agents/|The organophosphorus anticholinesterase agents are hydrolyzed in the body by a group of enzymes known as A-esterases or paroxonase, and by the cytochrome p-450 systems. Considerable variability exists in the human population for organophosphate metabolism by these routes. The A-esterases are found in plasma and in the hepatic endoplasmic reticulum and can hydrolyze a large number of organophosphorus compounds ... by splitting the anhydride, P-F, P-CN, or ester bond. /Anticholinesterase agents/|These chemicals are detoxified by cytochrome p450-mediated monooxygenases in the liver, but some metabolites are more toxic than parent cmpd ... Metabolites usually are detected from 12 to 48 hr postexposure. /Organophosphate cmpd/
The cardiovascular actions of anticholinesterase agents are complex, since they reflect both ganglionic and postganglionic effects of accumulated ACh on the heart and blood vessels. The predominant effect on the heart from the peripheral action of accumulated ACh is bradycardia, resulting in a fall in cardiac output. Higher doses usually cause a fall in blood pressure, often as a consequence of effects of anticholinesterase agents on the medullary vasomotor centers of the CNS. /Anticholinesterase agents/|Organophosphorus derivatives act by combining with and inactivating the enzyme acetylcholinesterase. ... The inactivation of cholinesterase by cholinesterase inhibitor pesticides allows the accumulation of large amounts of acetylcholine, with resultant widespread effects that may be ... separated into 4 categories: (1) Potentiation of postganglionic parasympathetic activity. ... (2) Persistent depolarization of skeletal muscle ... (3) Initial stimulation following depression of cells of central nervous system ... (4) Variable ganglionic stimulation or blockade ... /Cholinesterase inhibitor pesticides/|The main feature of the toxic mechanism of organophosphorus pesticides is inhibition of the esterase enzyme activity, in particular of cholinesterase, which plays an important physiological part. Organophosphorus pesticides can also indirectly interact with the biochemical receptors of acetylcholine. /Organophosphorus pesticides/|... The serum cholinesterase activity of 14 men and 16 women at seven approximately equal intervals throughout one 24 hr day was measured. The lowest average value, ... was 92% of the mean of all values at other sampling times. The next lowest value was 98.7% of the same mean. /It was/ concluded that the small variation observed did not take the form of a regular curve but was entirely individual without correspondence to hour. /Organic phosphorus pesticides/|For more Mechanism of Action (Complete) data for MENAZON (6 total), please visit the HSDB record page.
A comatose patient who is diaphoretic, has pinpoint pupils and the odor of an insecticide on clothing or breath, and is noted to have muscle fasciculations represents the classic presentation of organophosphate poisoning. ... Specific steps in management include the following. 1. Decontamination. ... 2 Airway. Establish an airway if necessary. ... 3. Respiratory Status. Respiratory distress, in fact, is commonly found in these patients from multiple causes. ... 4. Cardiac Monitoring. ... 5. Cholinesterase Level. ... 6. Pralidoxime. Pralidoxime is the treatment of choice for organophosphate poisoning and should be used for nearly all patients with clinically significant orgnophosphate poisoning, particularly whose patients with muscular fasciculations and weakness. ... 7. Atropine. Atropine is the physiologic antidote for organophosphate poisoning. A trial dose of atropine should be instituted on clinical ground when one suspects organophosphate intoxication. /Organophosphate poisoning/|1. INSURE THAT A CLEAR AIRWAY EXISTS BY ASPIRATION OF SECRETIONS IF NECESSARY. ADMIN OXYGEN BY MECHANICALLY ASSISTED PULMONARY VENTILATION IF RESPIRATION IS DEPRESSED. IMPROVE TISSUE OXYGENATION AS MUCH AS POSSIBLE BEFORE ADMIN ATROPINE TO MINIMIZE RISK OF VENTRICULAR FIBRILLATION. IN SEVERE POISONINGS, IT MAY BE NECESSARY TO SUPPORT PULMONARY VENTILATION MECHANICALLY FOR SEVERAL DAYS. 2. ADMIN ATROPINE SULFATE IV, OR IM IF IV INJECTION IS NOT POSSIBLE. ... IN MODERATELY SEVERE POISONING: ADULT DOSAGE AND CHILDREN OVER 12 YR: 0.4-2.0 MG REPEATED EVERY 15 MIN UNTIL ATROPINIZATION IS ACHIEVED. MAINTAIN ATROPINIZATION WITH REPEATED DOSAGE OF 0.02-0.05 MG/KG BODY WEIGHT. /ORGANOPHOSPHATE PESTICIDES/|2. SEVERELY POISONED INDIVIDUALS MAY EXHIBIT REMARKABLE TOLERANCE TO ATROPINE; TWO OR MORE TIMES THE DOSAGES SUGGESTED ABOVE MAY BE NEEDED. THE DOSE OF ATROPINE MAY BE INCREASED AND THE DOSING INTERVAL DECREASED AS NEEDED TO CONTROL SYMPTOMS. CONTINUOUS INTRAVENOUS INFUSION OF ATROPINE MAY BE NECESSARY WHEN ATROPINE REQUIREMENTS ARE MASSIVE. REVERSAL OF MUSCARINIC SYMPTOMS AND SIGNS, NOT AN ARBITRARY DOSE LIMIT, IS THE DESIRED END-POINT. PRESERVATIVE-FREE ATROPINE PRODUCTS SHOULD BE USED WHENEVER POSSIBLE. NOTE: PERSONS NOT POISONED OR ONLY SLIGHTLY POISONED BY ORGANOPHOSPHATES MAY DEVELOP SIGNS OF ATROPINE TOXICITY FROM SUCH LARGE DOSES. FEVER, MUSCLE FIBRILLATIONS, AND DELIRIUM ARE THE MAIN SIGNS OF ATROPINE TOXICITY. IF THESE APPEAR WHILE THE PATIENT IS FULLY ATROPINIZED, ATROPINE ADMINISTRATION SHOULD BE DISCONTINUED, AT LEAST TEMPORARILY, WHILE THE SEVERITY OF POISONING IS REEVALUATED. /ORGANOPHOSPHATE PESTICIDES/|3. DRAW BLOOD SAMPLE (HEPARINIZED) FOR CHOLINESTERASE ANALYSIS BEFORE ADMINISTRATION OF PRALIDOXIME, WHICH TENDS TO REVERSE THE CHOLINESTERASE DEPRESSION. 4. ADMIN PRALIDOXIME (PROTOPAM, 2-PAM) IN CASES OF SEVERE POISONING...IN WHICH RESP DEPRESSION, MUSCLE WEAKNESS & TWITCHINGS ARE SEVERE. ... ADULT DOSAGE AND CHILDREN OVER 12): GIVE 1.0-2.0 G IV @ NO MORE THAN 0.2 G/MIN. CHILD'S DOSE (UNDER 12 YR): GIVE 20-50 MG/KG (DEPENDING ON SEVERITY) IV, INJECTING NO MORE THAN HALF TOTAL DOSE/MIN. DOSAGE...MAY BE REPEATED IN 1-2 HR, THEN @ 10-12 HR INTERVAL IF NEEDED. IN VERY SEVERE POISONINGS, DOSAGE...MAY BE DOUBLED. /ORGANOPHOSPHATE PESTICIDES/|For more Antidote and Emergency Treatment (Complete) data for MENAZON (9 total), please visit the HSDB record page.
...CHOLINESTERASE INHIBITOR|All the organophosphorus insecticides have a cumulative effect by progressive inhibition of cholinesterase ... /Organophosphorus insecticides/|The symptoms of chronic poisoning due to organophosphorus pesticides include headache, weakness, feeling of heaviness in head, decline of memory, quick onset of fatigue, disturbed sleep, loss of appetite, & loss of orientation. Psychic disorders, nystagmus, trembling of the hands & other nervous system disorders can be observed in certain cases. Sometimes neuritis, paresis & paralysis develop. /Organophosphorus pesticides/|Organophosphorus cmpd can produce dermal irritation but most are weak sensitizers. /Organophosphate cmpd/|For more Human Toxicity Excerpts (Complete) data for MENAZON (17 total), please visit the HSDB record page.
menazon
Menazon Use and Manufacturing
IT MAY BE MADE BY REACTION OF (A) 2,4-DIAMINO-6-CHLOROMETHYL-1,3,5-TRIAZINE WITH SODIUM O,O-DIMETHYL PHOSPHORODITHIOATE; (B) BIGUANIDE WITH ETHYL (DIMETHOXYPHOSPHINOTHIOYLTHIO)ACETATE.|Prepn: Calderbank et al, Ger pat 1,118,789 corresp to US pat 3,169,964 (1961, 1965 both to ICI)
Insecticide; acaricide.
AS 70% DISPERSIBLE POWDER, 80% SEED DRESSING, OR A 400 G/L (4 LB/IMPERIAL GAL) FINELY DIVIDED LIQ SUSPENSION|TECHNICAL PRODUCT: 90-95% PURITY
The WHO Recommended Classification of Pesticides by Hazard identifies Menazon (technical grade) as an active ingredient believed to be obsolete or discontinued for use as a pesticide.|IT IS COMPATIBLE WITH ALL BUT STRONGLY ALKALINE PESTICIDES, BUT MAY BE DECOMP BY REACTIVE SURFACES OF SOME 'INERT' FILLERS. ...USED MAINLY FOR TUBER & SEED TREATMENT FOR PROTECTION OF SEEDLINGS; FOR FOLIAGE APPLICATION; AS SOIL DRENCH & ROOT DIP. IT IS NON- PHYTOTOXIC. ... IT IS TOXIC TO BEES & SHOULD NOT BE APPLIED @ FLOWERING STAGE.|SAYFOS 70 DP WP (70% ACTIVE COMPONENT). ...@ 1 LB/TON OF POTATOES BEFORE PLANTING, ALSO FOR SMOOTH SKINNED SEEDS, EG BEANS. SAYFOS 4 (4 LB/IMPERIAL GAL). FOLIAGE SPRAY @ 4 OZ/ACRE FOR GENERAL APPLICATIONS. SAYFOS SEED DRESSING FOR SUGAR BEET @ 5% WT/WT ON NATURAL SEED OR 2.5% ON PROCESSED SEED.|SYSTEMIC APHICIDE ACTS ALSO AS...STOMACH & CONTACT POISON. USED ON MANY CROPS INCL SUGAR BEET, POTATOES, COLE CROPS, FIELD BEANS, & TOBACCO; WOOLY APHID ON APPLE.|For more General Manufacturing Information (Complete) data for MENAZON (7 total), please visit the HSDB record page.
...MEASURE DIFFERENTIAL EXTINCTION @ 430 NM OF VANADOMOLYBDATE COMPLEX AFTER WET OXIDATION; RESIDUES MAY BE DETERMINED BY MICRO-PHOSPHORUS METHOD AFTER CLEAN UP BY PAPER CHROMATOGRAPHY.|DETERMINATION OF ORGANOPHOSPHATE INSECTICIDES BY ESTIMATION OF CHOLINESTERASE ACTIVITY BY PH-METER.|POLAROGRAPHIC DETERMINATION OF SAYPHOS IN WATER.|THIN-LAYER CHROMATOGRAPHY.|The possibility of applying agar diffusion method for the detection of organophosphorus pesticides in cadaveric material as a preliminary test in forensic chemical analysis is demonstrated.
Computed Properties
Molecular Weight:281.3
XLogP3:0.5
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:9
Rotatable Bond Count:5
Exact Mass:281.01700399
Monoisotopic Mass:281.01700399
Topological Polar Surface Area:167
Heavy Atom Count:16
Complexity:253
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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