PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dibenza(a,h)anthracene | 53-70-3 |
15.02
11.00
4.06
3.02
5.10
10.00
2.00
3.07
3.09
3.11
|
||||||||||
| Formula | Synonyms | |||||||||||
| C22H14 | DIBENZ[A,H]ANTHRACENE, 1,2,5,6-DBA, 1,2:5,6-BENZANTHRACENE, 1,2:5,6-DIBENZ(A)ANTHRACENE, 1,2:5,6-DIBENZANTHRACEN, 1,2:5,6-DIBENZANTHRACENE, 1,2:5,6-DIBENZOANTHRACENE, 1,2:5,6-DIBENZ[A]ANTHRACENE, DB(A,H)A, DBA, DIBENZO(A,H)ANTHRACENE, DIBENZO[A,H]ANTHRACENE, RCRA WASTE NUMBER U063 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 278.35 | S | 266.8 | 524 | 1.282 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.012 | 0.48 | 2.9 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.0011 | 0.042 | 0.25 |
Technical Basis
A review of available sources identified mouse intravenous LDLo toxicity data and an OEL-TWA (Poland). Data sources were selected according to the hierarchy listed in Table 3.1. The mouse intravenous LDLo was selected as the TEEL-3 basis and evaluated using factors in Tables 3.2, 3.3, and 3.4. The OEL-TWA (Poland) was selected as the TEEL-1 basis. The TEEL-2 value was derived according to Table 3.5.
• PAC-1 = TEEL-1 = OEL-TWA (Poland, 0.004 mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Mouse intravenous, LDLo (10 mg/kg)
This review generated a PAC-3 value consistent with Rev. 29A, and PAC-2 and PAC-1 values inconsistent with Rev. 29A. The Rev. 29A and current TEEL-3 values, sources, and methodology remain consistent. In Rev. 29A, the TEEL-2 basis was a mouse oral TDLo that was not found during the review; the current TEEL-2 was derived from the TEEL-3 (Table 3.5). The Rev. 29A TEEL-1 was derived from the TEEL-2 (Table 3.5), while the current basis is an exposure limit, OEL-TWA (Poland).
• PAC-1 = TEEL-1 = OEL-TWA (Poland, 0.004 mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Mouse intravenous, LDLo (10 mg/kg)
This review generated a PAC-3 value consistent with Rev. 29A, and PAC-2 and PAC-1 values inconsistent with Rev. 29A. The Rev. 29A and current TEEL-3 values, sources, and methodology remain consistent. In Rev. 29A, the TEEL-2 basis was a mouse oral TDLo that was not found during the review; the current TEEL-2 was derived from the TEEL-3 (Table 3.5). The Rev. 29A TEEL-1 was derived from the TEEL-2 (Table 3.5), while the current basis is an exposure limit, OEL-TWA (Poland).
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Dibenz_a_h_anthracene.
Mouse intravenous LDLo (10 mg/kg); https://pubchem.ncbi.nlm.nih.gov/compound/Dibenz_a_h_anthracene.
OEL-TWA (Poland): https://ilv.ifa.dguv.de/limitvalues/17359