- H: 302Harmful if swallowed
- H: 350May cause cancer.
- H: 411Toxic to aquatic life with long lasting effects
- 3,3-Dimethyl-1,1-biphenyl-4,4-diam
- 3,3-Dimethyl-4,4-diphenyldiamine
- 3,3-Dimethylbenzidin
- 3,3-Dimethylbenzidine
- 3,3-dimethylbiphenyl-4,4-diamine
- 3,3-Tolidine
- 4,4-Bi-o-toluidin
- 4,4-Diamino-3,3-dimethylbiphenyl
- Diaminoditolyl
- Dianisidin
- o-Tolidine