methyl alcohol

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alcohol

 [al´kah-hol]
1. any organic compound containing the hydroxy (-OH) functional group except those in which the OH group is attached to an aromatic ring, which are called phenols. Alcohols are classified as primary, secondary, or tertiary according to whether the carbon atom to which the OH group is attached is bonded to one, two, or three other carbon atoms and as monohydric, dihydric, or trihydric according to whether they contain one, two, or three OH groups; the latter two are called diols and triols, respectively.
2. an official preparation of ethanol, used as a disinfectant, solvent, and preservative, and applied topically as a rubbing compound, disinfectant, astringent, hemostatic, and coolant.
absolute alcohol dehydrated a.
benzyl alcohol a colorless liquid used as a bacteriostatic in solutions for injection and as a topical local anesthetic.
dehydrated alcohol an extremely hygroscopic, transparent, colorless, volatile liquid used as a solvent and injected into nerves and ganglia for relief of pain. Called also absolute a.
denatured alcohol ethanol made unfit for human consumption by the addition of substances known as denaturants. Although it should never be taken internally, denatured alcohol is widely used on the skin as a disinfectant.
ethyl alcohol (grain alcohol) ethanol.
isopropyl alcohol a transparent, volatile colorless liquid used as a solvent and disinfectant and applied topically as an antiseptic; called also isopropanol. Diluted with water to approximately 70 per cent strength, it is called isopropyl rubbing alcohol and is used as a rubbing compound.
methyl alcohol methanol.
pantothenyl alcohol dexpanthenol.
phenethyl alcohol (phenylethyl alcohol) a colorless liquid used as an antimicrobial agent in pharmaceuticals.
rubbing alcohol a preparation of acetone, methyl isobutyl ketone, and ethanol, used as a rubefacient.
wood alcohol methanol.

meth·yl al·co·hol

CH3OH; a flammable, toxic, mobile liquid, used as an industrial solvent, antifreeze, and in chemical manufacture; ingestion may result in severe acidosis, visual impairment, and other effects on the central nervous system.

methyl alcohol

See methanol.

methanol

A polar alcohol used as an industrial solvent; it is miscible with water, ethanol, ether, and petroleum derivatives (e.g., gasoline), and can be found in canned fuel and in antifreeze, from which it may be abused as an inebriant by indigent alcoholics. Methanol is metabolised to formaldehyde and formate, causing severe metabolic acidosis, optic nerve damage and blindness.
 
Toxic range
60–250 ml; as little as 15 ml can be fatal.

Management
Overload patient with ethanol, which competes with methanol for sites on alcohol dehydrogenase, reducing methanol metabolites and toxicity.

meth·yl al·co·hol

(meth'il al'kŏ-hol)
A flammable, toxic, mobile liquid, used as an industrial solvent and antifreeze, and in the manufacture of chemicals; ingestion may result in severe acidosis, visual impairment, and other effects on the central nervous system.
Synonym(s): methanol.

meth·yl al·co·hol

(meth'il al'kŏ-hol)
Flammable toxic liquid, used as an industrial solvent, antifreeze, and in chemical manufacture; ingestion may result in severe acidosis and other effects on the central nervous system.
Synonym(s): methanol.

alcohol

1. any organic compound containing the hydroxy (−OH) functional group except those in which the OH group is attached to an aromatic ring, which are called phenols. Alcohols are classified as primary, secondary or tertiary according to whether the carbon atom to which the OH group is attached is bonded to one, two or three other carbon atoms and as monohydric, dihydric or trihydric according to whether they contain one, two or three −OH groups; the latter two are called diols and triols, respectively.
2. common name for ethyl alcohol (ethanol). See also alcoholic.

absolute alcohol
ethyl alcohol free from water and impurities.
complex plant alcohol
includes cicutoxin, oenanthotoxin, tremetol, all toxic, causing heavy mortalities and signs including incoordination, tremor, convulsions, vomiting.
denatured alcohol
ethyl alcohol made unfit for consumption by the addition of substances known as denaturants. Although it should never be taken internally, denatured alcohol is widely used on the skin as a cooling agent and skin disinfectant.
ethoxylate alcohol detergents
alcohols containing an ethyl radical with an attached oxygen group; used in the treatment and prevention of ruminal bloat.
ethyl alcohol
a transparent, colorless, mobile, volatile liquid miscible with water, ether or chloroform, and obtained by the fermentation of carbohydrate with yeast. It is the major ingredient of alcoholic beverages consumed by humans. Called also ethanol and grain alcohol. It is used in veterinary medicine in the preparation of mixtures for topical application and for skin disinfection.
grain alcohol
see ethyl alcohol (above).
isopropyl alcohol
a transparent, volatile colorless liquid used as a rubbing compound. Called also isopropanol.
methyl alcohol
a mobile, colorless liquid used as a solvent. Called also wood alcohol or methanol. It is a useful fuel, but is poisonous if taken internally. Consumption may lead to blindness or death.
alcohol nerve block
permanent anesthesia to a part can be produced by blocking the relevant nerve with isopropyl alcohol. Adverse effects are likely due to continued loss of sensation and motor power.
alcohol poisoning
in animals this does not present the social problems that it does in humans even in cattle and sheep fed on brewer's grains and distiller's solubles. Ethyl alcohol is produced in some feeds which are fermented accidentally, but overt alcohol poisoning is not recorded. Carbohydrate engorgement is a more likely occurrence. Isopropyl alcohol is an end product of ketone body degradation in the rumen in cattle and does cause signs of inebriation in cows with nervous acetonemia.
Small companion animals are sometimes exposed to toxic levels of ethyl alcohol by owners and it may be readily consumed. Excessive amounts can lead to vomiting, various levels of central nervous system depression, including excitement, seizures and respiratory depression.
wood alcohol
methyl alcohol.

methyl

the monovalent radical, −CH3.

methyl alcohol
see methyl alcohol.
methyl bromide
a soil and grain fumigant. Poisoning by this compound causes incoordination and somnolence. Called also bromoethane.
methyl carbamate
methyl demeton
an organophosphorus insecticide. Called also methyl systox, oxydemeton-methyl.
methyl harmane (3-methyl)
carboline toxin found in plants.
methyl hydroxybenzoate
methyl p-hydroxybenzoate
a sex pheromone in the vaginal secretions of the bitch in estrus; it stimulates mounting behavior in dogs.
methyl orange
an orange-yellow aniline dye, used as an indicator with a pH range of 3.2-4.4 and a color change from pink to yellow.
methyl parathion
a very toxic organophosphorus insecticide.
methyl red test
a biochemical test for identification of enterobacteria.
methyl salicylate
a natural or synthetic wintergreen oil, used as a topical analgesic and as a clearing agent when mounting parasites. Called also oil of sweet birch.
methyl systox
see methyl demeton (above).