PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tetramethylbenzidine, 3,3',5,5'- | 54827-17-7 |
15.01
15.02
|
||||||||||
| Formula | Synonyms | |||||||||||
| C16.H20.N2 | 3,3^,5,5'-TETRAMETHYLBENZIDINE, 3,3',5,5'-TETRAMETHYL-(1,1-BIPHENYL)-4,4'-DIAMINE, 3,5,3',5'-TETRAMETHYLBENZIDINE, BENZIDINE, 3,3',5,5'-TETRAMETHYL- | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 240.38 | S |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.44 | 4.9 | 29 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.045 | 0.50 | 2.9 |
Technical Basis
A review of limited sources identified a mouse intraperitoneal LD50 that was selected as the TEEL-3 basis and evaluated using factors in Tables 3.2, 3.3, and 3.4. TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Mouse intraperitoneal LD50 (135 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A*.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Mouse intraperitoneal LD50 (135 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: National Center for Biotechnology Information (2024). PubChem Compound Summary for CID 41206, 3,3',5,5'-Tetramethylbenzidine. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/3_3_5_5_-Tetramethylbenzidine.
Mouse intraperitoneal LD50: Progress in Mutation Research., 1(682), 1981 via PubChem; National Center for Biotechnology Information (2024). PubChem Compound Summary for CID 41206, 3,3',5,5'-Tetramethylbenzidine. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/3_3_5_5_-Tetramethylbenzidine.