PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Indeno(1,2,3-cd)pyrene | 193-39-5 |
2.00
15.01
11.01
15.02
|
||||||||||
| Formula | Synonyms | |||||||||||
| C22H12 | INDENO(1,2,3-CD)PYRENE, 1,10-(1,2-PHENYLENE)PYRENE, 1,10-(O-PHENYLENE)PYRENE, 2,3-O-PHENYLENEPYRENE, 2,3-ORTHO-PHENYLENEPYRENE, INDENO(1,2,3-C,D) PYRENE, INDENO(1,2,3-C,D)PYRENE, O-PHENYLENEPYRENE, ORTHO-PHENYLENEPYRENE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 276.34 | S |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.60 | 120 | 700 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.053 | 11 | 62 |
Technical Basis
A review of available sources did not identify exposure limits or acute toxicity data for indeno(1,2,3—cd)pyrene. This chemical is a polyaromatic hydrocarbon (PAH), therefore analysts evaluated available exposure limits for a similar chemical, coal tar pitch volatiles (Section 3.4.6; CTPV, CASRN: 8007-45-2). The 1990 IDLH for CTPV was selected as the TEEL-3. The TEEL-2 was derived according to Table 3.5. The TLV-TWA for CPTV was selected as the TEEL-1 basis.
• PAC-1 = TEEL-1 = TLV-TWA (CPTV; CASRN: 65996-93-2; 0.2 mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = IDLH (1990, CPTV; CASRN: 65996-93-2; 700 mg/m3)
This review generated PAC values inconsistent with Rev. 29A. The Rev. 29A TEEL-3 was an HHR=3, while the current TEEL-3 is an IDLH for a structurally similar chemical, CPTV (Section 3.4.6, CASRN: 65996-93-2). The Rev. 29A and current TEEL-2 use the same methodology, with differences due to the change in TEEL-3. The Rev. 29A TEEL-1 was derived from the TEEL-2, while the current TEEL-1 basis is a TLV-TWA for a structurally similar chemical, CPTV (Section 3.4.6., CASRN: 65996-93-2).
• PAC-1 = TEEL-1 = TLV-TWA (CPTV; CASRN: 65996-93-2; 0.2 mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = IDLH (1990, CPTV; CASRN: 65996-93-2; 700 mg/m3)
This review generated PAC values inconsistent with Rev. 29A. The Rev. 29A TEEL-3 was an HHR=3, while the current TEEL-3 is an IDLH for a structurally similar chemical, CPTV (Section 3.4.6, CASRN: 65996-93-2). The Rev. 29A and current TEEL-2 use the same methodology, with differences due to the change in TEEL-3. The Rev. 29A TEEL-1 was derived from the TEEL-2, while the current TEEL-1 basis is a TLV-TWA for a structurally similar chemical, CPTV (Section 3.4.6., CASRN: 65996-93-2).
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/9131
Coal tar pitch volatiles (CASRN: 65996-93-2) IDLH: https://www.cdc.gov/niosh/idlh/65996932.html
Coal tar pitch volatiles (CASRN: 65996-93-2) exposure limits: https://www.osha.gov/chemicaldata/472