PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dimethyl-p-phenylenediamine, N,N- | 99-98-9 | 2811 |
15.01
11.01
15.02
4.05
7.01
8.00
7.00
11.00
4.06
3.10
|
|||||||||
| Formula | Synonyms | |||||||||||
| C8.H12.N2 | DIMETHYL-P-PHENYLENEDIAMINE, (4-(DIMETHYLAMINO)PHENYL)AMINE, 1,4-BENZENEDIAMINE, N,N-DIMETHYL-, 1-AMINO-4-(DIMETHYLAMINO)BENZENE, 4-(DIMETHYLAMINO)ANILINE, 4-(DIMETHYLAMINO)BENZENAMINE, 4-AMINO-N,N-DIMETHYLANILINE, 4-DIMETHYLAMINOANILINE, C.I. 76075, CI 76075, DIMETHYL-PARA-PHENYLENEDIAMINE, DIMETHYL-PARAPHENYLENEDIAMINE, DIMETHYLAMINOANILINE, DMPD, N,N-DIMETHYL-1,4-BENZENEDIAMINE, N,N-DIMETHYL-1,4-DIAMINOBENZENE, N,N-DIMETHYL-1,4-PHENYLENEDIAMINE, N,N-DIMETHYL-P-BENZENEDIAMINE, N,N-DIMETHYL-P-PHENYLENEDIAMINE, P-(DIMETHYLAMINO)ANILINE, P-(DIMETHYLAMINO)PHENYLAMINE, P-AMINO-N,N- DIMETHYLANILINE, P-AMINO-N,N-DIMETHYLANILINE, P-AMINODIMETHYLANILINE, P-DIMETHYLAMINOPHENYLAMINE, P-PHENYLENEDIAMINE, N,N-DIMETHYL- | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 136.22 | S/L | 41 | 262 | 0.0001 | 25 | 1.036 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.012 | 0.13 | 9.9 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.0022 | 0.023 | 1.8 |
Technical Basis
A review of available sources identified several acute toxicity data for various routes and species, and a Level of Concern (LOC). Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. Multiple data were evaluated for the TEEL-3 basis, including oral LD50 data (rat, mouse), and LCLo data (rabbit and guinea pig). Although inhalation is the most preferred exposure type, the LCLo data could not be used since there was no time duration listed and Section 3.3.2. does not specify time assumptions for these species; therefore, the LD50 of the most preferred species, a rat oral LD50, was selected as the TEEL-3 basis. The LOC was selected as the TEEL-2. The TEEL-1 value was derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = LOC (0.00013 g/m3)
• TEEL-3 = Rat oral LD50 (50 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A*.
• TEEL-1 = TEEL-2/11
• TEEL-2 = LOC (0.00013 g/m3)
• TEEL-3 = Rat oral LD50 (50 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/N_N-Dimethyl-p-phenylenediamine
Rat oral LD50: National Technical Information Service., OTS0555326. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/N_N-Dimethyl-p-phenylenediamine
LOC: Retrieved from Appendix C (page C-4); https://www.epa.gov/sites/default/files/2015-09/documents/technical_guidance_for_hazard_analysis.pdf