Benzidine dye
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Description
A group of azo dyes derived from 3,3'-dichlorobenzidine that have lightfast yellow and orange colors. Examples are Congo red and Diarylide dye.
Synonyms and Related Terms
benzidine yellow; colorante de bencidina (Esp.); coloranti a base di benzidina (It.); azo dye; diarylide dye; Congo red; benzidine orange
Comparisons
| Pigment number | Manufacture | Pigment name | Manufacture CI number | Comments |
|---|---|---|---|---|
| PO016 | Magruder | studio pigment orange | 55200 | sample contains calcite |
| PO016 | Sun | out of stock orange | 276-3016 |
Hazards and Safety
Highly toxic. Human carcinogen, often causing bladder cancer.
Sources Checked for Data in Record
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Monona Rossol, The Artist's Complete Health and Safety Guide, Allworth Press, New York, 1994
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997