PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dimethyl-3-nitrobenzene, 1,2- | 83-41-0 | 8027 |
16.01
|
|||||||||
| Formula | Synonyms | |||||||||||
| C8.H9.N.O2 | 1,2-DIMETHYL-3-NITROBENZENE, 2,3-DIMETHYL-1-NITROBENZENE, 2,3-DIMETHYLNITROBENZENE, 3-NITRO-O-XYLENE, 3-NITRO-O-XYLOL, BENZENE, 1,2-DIMETHYL-3-NITRO-, O-XYLENE, 3-NITRO- | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 151.163 | L | 240 | 1.1402 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 6.3 | 70 | 420 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.0 | 11 | 68 |
Technical Basis
A review of available sources identified rat acute toxicity data (LD50). 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. The lowest rat oral LD50 was selected as the TEEL-3 basis. TEEL-2 and TEEL-2 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Rat oral LD50 (2110 mg/kg)
This review generated PAC values that are inconsistent with Rev. 29A. The Rev. 29A TEEL-1 basis was a TLV-TWA for particles not otherwise specified (Section 3.5.2), from which the TEEL-2 and TEEL-3 were derived (Table 3.5). The current TEEL-3 is acute toxicity (LD50) for 1,2-dimethyl-3-nitrobenzene, from which the TEEL-2 and TEEL-1 were derived (Table 3.5).
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Rat oral LD50 (2110 mg/kg)
This review generated PAC values that are inconsistent with Rev. 29A. The Rev. 29A TEEL-1 basis was a TLV-TWA for particles not otherwise specified (Section 3.5.2), from which the TEEL-2 and TEEL-3 were derived (Table 3.5). The current TEEL-3 is acute toxicity (LD50) for 1,2-dimethyl-3-nitrobenzene, from which the TEEL-2 and TEEL-1 were derived (Table 3.5).
References
Chemical information. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/1_2-Dimethyl-3-nitrobenzene
Rat LD50. Toxikologische Bewertung (Heidelberg) Vol 93, 16 pp (1994). Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/1_2-Dimethyl-3-nitrobenzene