Oxethazaine

467.64

467.64

204-780-5

IP8QT76V17

758444

DTXSID0025818

C - Cardiovascular system

64.1

4.94

Oxethazaine is a white powder. (NTP, 1992)

1.0974 (rough estimate)

104 °C

630

335.1±31.5 °C

1.7800 (estimate)

H2O: <0.1 g/100 mL at 23 ºC

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

9.25E-17mmHg at 25°C

LD50 oral in rat: 1gm/kg

6.25None

6.25

213.7 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards]

Insoluble in water.

Alcohols and Polyols

A hydroxylated amide. Organic amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).

NONH for all modes of transport

3

22

36

AC3325000

Xn

P264, P270, P301+P312, P330, P501

H302

Flash point data are not available for this chemical, but it is probably combustible. (NTP, 1992)

|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P301+P312, P330, and P501|Aggregated GHS information provided by 39 companies from 1 notifications to the ECHA C&L Inventory.

Fires involving this compound should be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)

SMALL SPILLS AND LEAKAGE: You should dampen the solid spill material with acetone, then transfer the dampened material to a suitable container. Use absorbent paper dampened with acetone to pick up any remaining material. Seal your contaminated clothing and the adsorbent paper in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with acetone followed by washing with a strong soap and water solution. Do not reenter the contaminate area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned. STORAGE PRECAUTIONS: You should store this material in a refrigerator. (NTP, 1992)

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)

When orally administered, oxetacaine presents a good tolerance. However, following intravenous injection, oxetacaine toxicity is high and it is presented as a depression in myocardial contractility and impaired conduction.

Due to the low half-life, it is thought that oxetacaine, when absorbed, presents a very low protein plasma binding.

Oxetacaine is available as an over-the-counter antacid and it is used to alleviate pain associated with gastritis, peptic ulcer disease, heartburn, esophagitis, hiatus hernia, and anorexia.

Oxetacaine improves common gastrointestinal symptoms. Oxetacaine is part of the anesthetic antacids which increase the gastric pH while providing relief from pain for a longer period of duration at a lower dosage. This property has been reported to relieve the symptoms of hyperacidity. Oxetacaine is reported to produce a reversible loss of sensation and to provide a prompt and prolonged relief of pain. In vitro, oxetacaine was showed to produce an antispasmodic action on the smooth muscle and block the action of serotonin. The local efficacy of oxetacaine has been proven to be 2000 times more potent than lignocaine and 500 times more potent than cocaine. Its anesthetic action produces the loss of sensation which can be explained by its inhibitory activity against the nerve impulses and de decrease in permeability of the cell membrane.

Drugs that block nerve conduction when applied locally to nerve tissue in appropriate concentrations. They act on any part of the nervous system and on every type of nerve fiber. In contact with a nerve trunk, these anesthetics can cause both sensory and motor paralysis in the innervated area. Their action is completely reversible. (From Gilman AG, et. al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 8th ed) Nearly all local anesthetics act by reducing the tendency of voltage-dependent sodium channels to activate. (See all compounds classified as Anesthetics, Local.)

A peak plasma concentration of oxetacaine of approximately 20 ng/ml is attained about one hour after oral administration. LEss than 1/3 of the administered dose is absorbed as it undergoes extensive metabolism.|Less than 0.1% of the amdinistered dose is recovered in urine within 24 hours in the form of unchanged oxetacaine or its metabolites.|This pharmacokinetic property has not been studied.

Oxetacaine is rapidly and extensively metabolized hepatically. After metabolism, there is a formation of primary metabolites such as beta-hydroxy-mephentermine and beta-hydroxy-phentermine. The major metabolites are found in the plasma in insignificant amounts.

Oxetacaine presents a very short half-life of approximately one hour.

Oxetacaine inhibits gastric acid secretion by suppressing gastrin secretion. Moreover, oxetacaine exerts a local anesthetic effect on the gastric mucosa. This potent local anesthetic effect of oxetacaine may be explained by its unique chemical characteristics in which, as a weak base, it is relatively non-ionized in acidic solutions whereas its hydrochloride salt is soluble in organic solvents and it can penetrate cell membranes. Oxetacaine diminishes the conduction of sensory nerve impulses near the application site which in order reduces the permeability of the cell membrane to sodium ions. This activity is performed by the incorporation of the unionized form into the cell membrane.

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop. SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment. INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing. INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

2,2'-((2-hydroxyethyl)imino)bis(N-alpha,alpha-dimethylphenethyl)-N-methylacetamide

Pharmaceuticals