toluidine: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “toluidine” mean?
Any of three isomeric aromatic amines (C₇H₉N) derived from toluene, used as intermediates in dye manufacture.
Audio
Pronunciation
Definition
Meaning and Definition
Any of three isomeric aromatic amines (C₇H₉N) derived from toluene, used as intermediates in dye manufacture.
A colorless organic compound in the amine family, existing as ortho-, meta-, and para-isomers, primarily employed in industrial chemical synthesis, particularly for producing dyes, pigments, pharmaceuticals, and rubber chemicals.
Dialectal Variation
British vs American Usage
Differences
No lexical differences; identical technical usage. Spelling follows each region's standard conventions (e.g., 'colour' vs. 'color' in surrounding text).
Connotations
None beyond its scientific/industrial reference.
Frequency
Extremely rare outside chemistry texts and industrial contexts in both regions.
Grammar
How to Use “toluidine” in a Sentence
[toluidine] + [is used as] + [intermediate][toluidine] + [is derived from] + [toluene][toluidine] + [is classified as] + [amine]Vocabulary
Collocations
Examples
Examples of “toluidine” in a Sentence
adjective
British English
- The toluidine-based dye showed excellent fastness.
- A toluidine derivative was characterised.
American English
- The toluidine-based pigment showed excellent fastness.
- A toluidine derivative was characterized.
Usage
Meaning in Context
Business
Only in chemical manufacturing or specialty chemicals trading reports.
Academic
Primarily in organic chemistry, chemical engineering, and industrial chemistry publications.
Everyday
Virtually never used.
Technical
Standard term in chemical synthesis protocols, material safety data sheets (MSDS), and patent literature for dyes/drugs.
Vocabulary
Synonyms of “toluidine”
Strong
Neutral
Weak
Watch out
Common Mistakes When Using “toluidine”
- Using 'toluidine' without specifying the isomer when it matters chemically.
- Mispronouncing as /ˈtɒljʊdaɪn/ (like 'tolu' + 'idine' as in 'iodine').
- Confusing it with the solvent 'toluene'.
FAQ
Frequently Asked Questions
Yes, especially ortho-toluidine, which is classified as a human carcinogen. All isomers require proper safety handling.
Toluene (C₇H₈) is a simple aromatic hydrocarbon solvent. Toluidine (C₇H₉N) is derived from toluene by replacing one hydrogen with an amino (-NH₂) group, making it an amine.
They are structural isomers. The amino group can be attached at the ortho (1,2-), meta (1,3-), or para (1,4-) position relative to the methyl group on the benzene ring, giving distinct chemical properties.
Exclusively in advanced chemistry, chemical engineering, industrial chemistry, and related materials science fields.
Any of three isomeric aromatic amines (C₇H₉N) derived from toluene, used as intermediates in dye manufacture.
Toluidine is usually technical/scientific in register.
Toluidine: in British English it is pronounced /tɒˈluːɪdiːn/, and in American English it is pronounced /təˈluəˌdin/ or /ˈtɑləˌdin/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine TOLUene + an amINE group attached = TOLUIDINE.
Practice
Quiz
What is the primary industrial use of toluidine?