| butyl | <chemistry> A compound radical, regarded as butane, less one atom of hydrogen. Origin: L. Butyrum butter + -yl. See Butter. Source: Websters Dictionary (01 Mar 1998) |
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| butyl alcohol | C4H9OH;several isomeric forms are known: (05 Mar 2000) |
| butyl aminobenzoate | N-butyl p-aminobenzoate;a local anaesthetic, very insoluble and only slightly absorbed. Synonym: butamben. (05 Mar 2000) |
| butylated hydroxyanisole | <chemical> Mixture of 2- and 3-tert-butyl-4-methoxyphenols that is used as an antioxidant in foods, cosmetics, and pharmaceuticals. It may inhibit carcinogenesis. Pharmacological action: antioxidants, food preservatives, pharmaceutic aid. Chemical name: Phenol, (1,1-dimethylethyl)-4-methoxy- (12 Dec 1998) |
| butylated hydroxytoluene | <chemical> Antioxidant used in foods, cosmetics, petroleum products, etc. It may inhibit some neoplasms and facilitate others. Pharmacological action: antioxidants, food preservatives, pharmaceutic aid. Chemical name: Phenol, 2,6-bis(1,1-dimethylethyl)-4-methyl- (12 Dec 1998) |
| butylene | <chemistry> Any one of three metameric hydrocarbons, C4H8, of the ethylene series. They are gaseous or easily liquefiable. Origin: From Butyl. Source: Websters Dictionary (01 Mar 1998) |
| butylene glycols | 4-carbon straight chain aliphatic hydrocarbons substituted with two hydroxyl groups. The hydroxyl groups cannot be on the same carbon atom. (12 Dec 1998) |
| butylhydroxybutylnitrosamine | <chemical> A substituted carcinogenic nitrosamine. Pharmacological action: carcinogens. Chemical name: 1-Butanol, 4-(butylnitrosoamino)- (12 Dec 1998) |
| butylparaben | Butyl p-hydroxybenzoate;an antifungal preservative. (05 Mar 2000) |
| butylscopolammonium bromide | <chemical> Antimuscarinic quaternary ammonium derivative of scopolamine used to treat cramps in gastrointestinal, urinary, uterine, and biliary tracts, and to facilitate radiologic visualization of the gastrointestinal tract. Pharmacological action: muscarinic antagonists, parasympatholytics. Chemical name: 3-Oxa-9-azoniatricyclo(3.3.1.02,4)nonane, 9-butyl-7-(3-hydroxy-1-oxo-2-phenylpropoxy)-9-methyl-, bromide, (7(S)-(1alpha,2beta,4beta,5alpha,7beta))- (12 Dec 1998) |
| butanol, butyl alcohol | An alcohol with the chemical formula CH3(CH2)30H. It is formed during anaerobic fermentation using bacteria to convert the sugars to butanol and carbon dioxide. (05 Dec 1998) |
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| methyl n-butyl ketone | <chemical> 2-hexanone. An industrial solvent which causes nervous system degeneration. Synonym: mbk. Chemical name: 2-Hexanone (12 Dec 1998) |
| methyl-tert-butyl ether | Used to dissolve gallbladder stones. Acronym: MTBE (05 Mar 2000) |
| primary butyl alcohol | Propylcarbinol, CH3CH2CH2CH2OH, the butyl alcohol of fermentation; isobutyl alcohol, isopropylcarbinol, 2-methyl-1-propanol, (CH3)2CHCH2OH; narcotic in high concentrations, secondary butyl alcohol, ethylmethylcarbinol, 2-butanol, CH3CH2CH(CH3)OH; and (05 Mar 2000) |
| tert-butyl alcohol | <chemical> Pharmacological action: carcinogens. (12 Dec 1998) |
| tertiary butyl alcohol | Trimethylcarbinol, 2-methyl-2-propanol, (CH3)3COH, a denaturant for ethanol. (05 Mar 2000) |