- any of three isomeric amines having the formula C7H9N, derived from toluene: used in the dye and drug industries.
Origin of toluidine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for toluidine
The aniline selected for this purpose should contain about 25% of the toluidine.
From this it will be evident that an aniline rich in toluidine is an essential condition for obtaining aniline red.
The result is a diazo-salt; aniline, for example, giving diazobenzene chloride, and toluidine diazotoluene chloride.
The large quantity of aniline and toluidine now made has opened up a channel for the use of the waste borings from cast-iron.
By a similar process toluene is converted into nitrotoluene, and the latter into toluidine.
- an amine derived from toluene existing in three isomeric forms; aminotoluene. The ortho- and meta- isomers are liquids and the para- isomer is a crystalline solid. All three are used in making dyes. Formula: C 6 H 4 CH 3 NH 2
C19: from tolu (ene) + -ide + -ine ²
- Any of three isomeric compounds containing a benzene ring with a methyl (CH3) and amino (NH2) group attached to it. Toluidine is used to make dyes. Chemical formula: C7H9N.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.