1-Undecanol

172.31

172.31

1698334

203-970-5

06MJ0P28T3

1539

403667

3082

DTXSID0026915

Colorless liquid

2905199090

20.2

4.72

Clear colorless to pale yellow Liquid

0.8298 g/cm³ @ Temp: 20 °C

19 °C

243 °C @ Press: 760 Torr

>230 °F

1.438

Not miscible or difficult to mix with water. soluble in chloroform and ethyl acetate.

2-8°C

2.97X10-3 mm Hg at 25 deg C (est)

Oral-Rat LD50: 3000 mg/kg

Flammable; burning produces irritating fumes

Citrus

FATTY FLAVOR

Henry's Law constant = 7.3X10-5 atm-cu m/mol at 25 °C (est)

Hydroxyl radical reaction rate constant = 1.7X10-11 cu cm/molec-sec at 25 °C (est)

Slightly soluble in water.

Alcohols and Polyols

UNDECANOL is an alcohol. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert them to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides.

III

9

UN 3082 9/PG 3

2

38-51/53-43

37-61-36/37

YQ3155000

Xi,N

Warehouse ventilated, low temperature and dry

Stable. Combustible. Incompatible with strong oxidizing agents, strong acids.

P273-P280

H315-H317-H411

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

Undecyl alcohol is a food additive permitted for direct addition to food for human consumption as a synthetic flavoring substance and adjuvant in accordance with the following conditions: a) they are used in the minimum quantity required to produce their intended effect, and otherwise in accordance with all the principles of good manufacturing practice, and 2) they consist of one or more of the following, used alone or in combination with flavoring substances and adjuvants generally recognized as safe in food, prior-sanctioned for such use, or regulated by an appropriate section in this part.

OPDYKE DL J; MONOGRAPHS ON FRAGRANCE RAW MATERIALS. ALCOHOL C-11, UNDECYLIC; FOOD COSMET TOXICOL 16 (SUPPL 1): 641 (1978). A REVIEW WITH 21 REFERENCES ON ALCOHOL C-11 INCLUDING TOXICITY EFFECTS ON TISSUE COMPONENTS, IRRITATION, AND SENSITIZATION.

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot. For UN3508, be aware of possible short circuiting as this product is transported in a charged state. (ERG, 2016)|Combustible.

|Warning|H315 (21.36%): Causes skin irritation [Warning Skin corrosion/irritation]|P264, P273, P280, P302+P352, P305+P351+P338, P321, P332+P313, P337+P313, P362, P391, and P501|Aggregated GHS information provided by 1988 companies from 17 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H315: Causes skin irritation [Warning Skin corrosion/irritation]

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: SMALL FIRE: Dry chemical, CO2, water spray or regular foam. LARGE FIRE: Water spray, fog or regular foam. Do not scatter spilled material with high-pressure water streams. Move containers from fire area if you can do it without risk. Dike fire-control water for later disposal. FIRE INVOLVING TANKS: Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. (ERG, 2016)|Use water spray, powder, alcohol-resistant foam, carbon dioxide.

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent dust cloud. Avoid inhalation of asbestos dust. SMALL DRY SPILL: With clean shovel, place material into clean, dry container and cover loosely; move containers from spill area. SMALL SPILL: Pick up with sand or other non-combustible absorbent material and place into containers for later disposal. LARGE SPILL: Dike far ahead of liquid spill for later disposal. Cover powder spill with plastic sheet or tarp to minimize spreading. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2016)

Goggles or face shield. (USCG, 1999)

AEROBIC: Using acclimated mixed microbial cultures, the theoretical and 5-day BOD for 1-undecanol were determined to be 16.50% and 4.5 mmol/mmol chemical, respectively(1). After 5 days at 21 °C in sewage, the theoretical BOD for 1-undecanol was 27.6%(2). 1-Undecanol had a zero order biodegradation rate of 0.125 ppm/hour and a first order biodegradation rate constant of 6.1X10-3/hour by activated sludge(3). Using this biodegradation rate constant a half-life of 4.7 days can be calculated(SRC).

Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Collect leaking and spilled liquid in covered containers as far as possible.

Well closed.

No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20 °C.

The substance is severely irritating to the eyes. The substance is irritating to the skin and respiratory tract.

The substance defats the skin, which may cause dryness or cracking.

NO open flames.

Use ventilation, local exhaust or breathing protection.

Protective gloves.

Wear safety goggles or eye protection in combination with breathing protection.

1-Undecanol was reported at 17 ng/ul of extract in 1 occurrence from the organic chemical industry(1).

moderately toxic

ALCOHOL-INDUCED NUTRITIONAL ENCEPHALOMALACIA IN STARTING CHICKS COULD BE COMPLETELY PREVENTED BY DIETARY SUPPLEMENTATION OF D,L-ALPHA-TOCOPHERYL ACETATE.|WITH USE OF SURFACTANTS EG TWEEN 80, ALCOHOL EMULSIONS WERE PHYTOTOXIC ONLY TO YOUNG MERISTEMATIC TISSUE. WITHOUT THE SURFACANT, C11 ALCOHOLS & ESTERS SHOWED NONSELECTIVE TISSUE KILL.

LD50 Rabbit dermal >5g/kg /From table/|LD50 Rat oral 3000 mg/kg|LD50 Guinea pig dermal >20 g/kg

REPORTED FOUND IN NATURE (CITRUS FRUITS).

1-Undecanol's production and use as a food additive(1), synthetic flavor(1,2), and in perfumery(2) may result in its release to the environment through various waste streams(SRC).

TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 8,800(SRC), determined from a log Kow of 4.72(2) and a regression-derived equation(3), indicates that 1-undecanol is expected to be immobile in soil(SRC). Volatilization of 1-undecanol from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 7.3X10-5 atm-cu m/mole(SRC), using a fragment constant estimation method(4). However, adsorption to soil is expected to attenuate volatilization(SRC). 1-Undecanol is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 2.97X10-3 mm Hg(5). The theoretical BOD for 1-undecanol was 27.6% after 5-day incubation in sewage(6), indicating that biodegradation may be an important environmental fate process in soil(SRC).|AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 8,800(SRC), determined from a log Kow of 4.72(2) and a regression-derived equation(3), indicates that 1-undecanol is expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is expected(3) based upon an estimated Henry's Law constant of 7.3X10-5 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). Using this Henry's Law constant and an estimation method(3), volatilization half-lives for a model river and model lake are 20 hours and 10 days, respectively(SRC). However, volatilization from water surfaces is expected to be attenuated by adsorption to suspended solids and sediment in the water column. The estimated volatilization half-life from a model pond is 9 months if adsorption is considered(5). According to a classification scheme(6), an estimated BCF of 86(SRC), from its log Kow(2) and a regression-derived equation(7), suggests the potential for bioconcentration in aquatic organisms is moderate(SRC). The theoretical BOD for 1-undecanol was 27.6% after 5-day incubation in sewage(8), indicating that biodegradation may be an important environmental fate process in water(SRC).|ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), 1-undecanol, which has a vapor pressure of 2.97X10-3 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase 1-undecanol 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 23 hours(SRC), calculated from its rate constant of 1.7X10-11 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3).

The rate constant for the vapor-phase reaction of 1-undecanol with photochemically-produced hydroxyl radicals has been estimated as 1.7X10-11 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1). This corresponds to an atmospheric half-life of about 23 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). 1-Undecanol is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions(2).

An estimated BCF of 86 was calculated for 1-undecanol(SRC), using a log Kow of 4.72(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is moderate(SRC), provided the compound is not metabolized by the organism(SRC).

The Koc of 1-undecanol is estimated as 8,800(SRC), using a log Kow of 4.72(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 1-undecanol is expected to be immobile in soil.

The Henry's Law constant for 1-undecanol is estimated as 7.23X10-5 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that 1-undecanol is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 20 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 10 days(SRC). 1-Undecanol's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). However, volatilization from water surfaces is expected to be attenuated by adsorption to suspended solids and sediment in the water column. The volatilization half-life from a model pond is about 9 months when adsorption is considered(3). 1-Undecanol is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 2.97X10-3 mm Hg(4).

SURFACE WATER: 1-Undecanol has been qualitatively identified in the Northern Basin of Lake Michigan(1).|DRINKING WATER: 1-Undecanol was qualitatively identified in drinking water in Philadelphia, PA on 2/10/76(1).

1-Undecanol was identified as a volatile component of beef(1).

Occupational exposure to 1-undecanol may occur through dermal contact with this compound at workplaces where 1-undecanol is produced or used. Monitoring data indicate that the general population may be exposed to 1-undecanol via ingestion of food and drinking water, and dermal contact with this compound and other consumer products containing 1-undecanol. (SRC)

... Undecanol was the most potent fungicide followed by decanol. The time-kill curve study showed that undecanol was fungicidal against S. cerevisiae at any growth stages was not influenced by pH values. The alcohols tested inhibited glucose-induced acidification by inhibiting the plasma membrane H(+)-ATPase. The primary antifungal action of amphipathic medium-chain (C(9)-C(12)) alkanols comes mainly from their ability as nonionic surfactants to disrupt the native membrane-associated function of the integral proteins.

Liquid can irritate eyes. (USCG, 1999)

Wash eyes with water for at least 15 min. (USCG, 1999)

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse and then wash skin with water and soap.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Basic Treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for shock and treat if necessary ... . Monitor for pulmonary edema and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal ... . /Higher alcohols (>3 carbons) and related compounds/|Advanced Treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Positive-pressure ventilation techniques, with a bag-valve-mask device, may be beneficial. Consider drug therapy for pulmonary edema ... . Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Consider vasopressors if patient is hypotensive with a normal fluid volume. Watch for signs of fluid overload ... . Monitor for signs of hypoglycemia (decreased LOC, tachycardia, pallor, dilated pupils, diaphoresis, and/or dextrose strip or glucometer readings below 50 mg) and administer 50% dextrose if necessary ... . Treat seizures with diazepam or lorazepam ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Higher alcohols (>3 carbons) and related compounds/

/SIGNS AND SYMPTOMS/ The substance is severely irritating to the eyes, and is irritating to the skin and the respiratory tract.

Cough.

Dry skin. Redness. Roughness. Pain.

Redness. Pain. Blurred vision.

Purity: a minimum of 97-98.5% undecyl alcohol.

Oil and gas drilling, extraction, and support activities|1-Undecanol: ACTIVE|Decane, hydroxymethyl deriv.: INACTIVE|PMN - indicates a commenced PMN (Pre-Manufacture Notices) substance.|Undecanol: ACTIVE|Commercial products from the family of 6 to 11 carbon alcohols that make up the plasticizer range are available both as ... pure single carbon chain materials and as complex isomeric mixtures. Commercial descriptions of plasticizer range alcohols are ... in general a ... pure material is called "-anol" /eg, 1-undecanol/, and the mixtures are called "-yl alcohol /eg, undecyl alcohol/ or "iso...yl alcohol" /eg, isoundecyl alcohol/.|Reported uses /include/ non-alcoholic beverages 4.09 ppm; ice cream, ices, etc 15.47 ppm; candy 17.65 ppm; baked goods 17.66 ppm; alcoholic beverages 4.50 ppm.

EPA Safer Chemical Functional Use Classes -> Fragrances;Solvents|Safer Chemical Classes -> Green half-circle - The chemical is expected to be of low concern|Food additives -> Flavoring Agents|Flavoring Agents -> JECFA Flavorings Index|Fatty Acyls [FA] -> Fatty alcohols [FA05]|Cosmetics -> Antiseborrhoeic; Skin conditioning

Flavoring Agents