Defn: A hydrocarbon, C6H5.CH3, of the aromatic series, homologous with benzene, and obtained as a light mobile colorless liquid, by distilling tolu balsam, coal tar, etc.; — called also methyl benzene, phenyl methane, etc.
TOLUENYL
Tol`u*e"nyl, n. Etym: [Toluene + -yl.] (Chem.)
Defn: Tolyl. [Obs.]
TOLUIC
To*lu"ic, a. (Chem.)
Defn: Pertaining to, or designating, one of three metameric acids, CH3.C6H4.CO2H, which are related to toluene and analogous to benzoic acids. They are white crystalline substances, and are called respectively orthotoluic acid, metatoluic acid, and paratoluic acid.
TOLUID
Tol"u*id, n. (Chem.)
Defn: A complex double tolyl and toluidine derivative of glycocoll, obtained as a white crystalline substance.
TOLUIDINE
To*lu"i*dine, n. (Chem.)
Defn: Any one of three metameric amido derivatives of toluene analogous to aniline, and called respectively orthtoluidine, metatoluidine, and paratoluidine; especially, the commonest one, or paratoluidine, which is obtained as a white crystalline substance.
Note: It is used in the aniline dye industry, and constitutes the essential nucleus or radical of those dyes.