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Crocein :: Crocein (n.) A name given to any one of several yellow or scarlet dyestuffs of artificial production and complex structure. In general they are diazo and sulphonic acid derivatives of benzene and naphthol.

Methionic :: Methionic (a.) Of, pertaining to, or designating, a sulphonic (thionic) acid derivative of methane, obtained as a stable white crystalline substance, CH2.(SO3H)2, which forms well defined salts..

Piperylene :: Piperylene (n.) A hydrocarbon obtained by decomposition of certain piperidine derivatives.

Ethane :: Ethane (n.) A gaseous hydrocarbon, C2H6, forming a constituent of ordinary illuminating gas. It is the second member of the paraffin series, and its most important derivatives are common alcohol, aldehyde, ether, and acetic acid. Called also dimethyl..

Valeryl :: Valeryl (n.) The hypothetical radical C5H9O, regarded as the essential nucleus of certain valeric acid derivatives..

Toluric :: Toluric (a.) Of, pertaining to, or designating, any one of three isomeric crystalline acids, C9H10ON.CO2H, which are toluyl derivatives of glycocoll..

Nitromethane :: Nitromethane (n.) A nitro derivative of methane obtained as a mobile liquid; -- called also nitrocarbol.

Oxalyl :: Oxalyl (n.) A hydrocarbon radical (C2O2) regarded as a residue of oxalic acid and occurring in derivatives of it.

Isatin :: Isatin (n.) An orange-red crystalline substance, C8H5NO2, obtained by the oxidation of indigo blue. It is also produced from certain derivatives of benzoic acid, and is one important source of artificial indigo..

Hydrazine :: Hydrazine (n.) Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, H2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with a peculiar, irritating odor. As a base it forms distinct salts. Called also diamide, amidogen, (or more properly diamidogen), etc..

Pentyl :: Pentyl (n.) The hypothetical radical, C5H11, of pentane and certain of its derivatives. Same as Amyl..

Capric :: Capric (a.) Of or pertaining to capric acid or its derivatives.

Tetrathionic :: Tetrathionic (a.) Of, pertaining to, or designating, a thionic derivative, H/S/O/, of sulphuric acid, obtained as a colorless, odorless liquid..

Viridine :: Viridine (n.) A greenish, oily, nitrogenous hydrocarbon, C12H19N7, obtained from coal tar, and probably consisting of a mixture of several metameric compounds which are higher derivatives of the base pyridine..

Derivative :: Derivative (n.) That which is derived; anything obtained or deduced from another.

Conyrine :: Conyrine (n.) A blue, fluorescent, oily base (regarded as a derivative of pyridine), obtained from conine..

Toluid :: Toluid (n.) A complex double tolyl and toluidine derivative of glycocoll, obtained as a white crystalline substance..

Succinate :: Succinamic (a.) Of, pertaining to, or designating, an acid amide derivative of succinic acid, obtained as a white crystalline substance, and forming a series of salts..

Chloranil :: Chloranil (n.) A yellow crystalline substance, C6Cl4.O2, regarded as a derivative of quinone, obtained by the action of chlorine on certain benzene derivatives, as aniline..

Safranine :: Safranine (n.) An orange-red nitrogenous dyestuff produced artificially by oxidizing certain aniline derivatives, and used in dyeing silk and wool; also, any one of the series of which safranine proper is the type..

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