PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Di-sec-octylphthalate | 117-81-7 |
11.01
4.08
7.01
8.00
7.00
11.00
4.09
4.07
2.00
10.00
|
||||||||||
| Formula | Synonyms | |||||||||||
| C24H38O4 | DI(2-ETHYLHEXYL) PHTHALATE, 1,2-BENZENEDICARBOXYLIC ACID, BIS(2-ETHYLHEXYL) ESTER, 2-ETHYLHEXYL PHTHALATE, 3315AF2, BEHP, BIS(2-ETHYLHEXYL) 1,2-BENZENEDICARBOXYLATE, BIS(2-ETHYLHEXYL) O-PHTHALATE, BIS(2-ETHYLHEXYL) PHTHALATE, BIS(2-ETHYLHEXYL)ESTER PHTHALIC ACID, BIS(2-ETHYLHEXYL)PHTHALATE, BIS-(2-ETHYLHEXYL)-1,2-BENZENEDICARBOXYLATE, BIS-(2-ETHYLHEXYL)PHTHALATE, BISOFLEX 81, BISOFLEX DOP, COMPOUND 889, CORFLEX 400, DAF 68, DEHP, DI(2-ETHYLHEXYL)ORTHOPHTHALATE, DI(2-ETHYLHEXYL)PHTHALATE, DI(ISOOCTYL) PHTHALATE, DI-(2-ETHYLHEXYL) PHTHALATE, DI-SEC-OCTYL PHTHALATE, DIACIZER DOP, DIOCTYL PHTHALATE, DOF, DOF (RUSSIAN PLASTICIZER), DOP, ERGOPLAST FDO, ERGOPLAST FDO-S, ETALON, ETALON (PLASTICIZER), ETHYL HEXYL PHTHALATE, ETHYLHEXYL PHTHALATE, EVIPLAST 80, EVIPLAST 81, FLEXIMEL, FLEXOL DOP, FLEXOL PLASTICIZER DOP, GOOD-RITE GP 264, HATCO DOP, HATCOL DOP, HERCOFLEX 260, JAYFLEX DOP, KODAFLEX DOP, MOLLAN O, MONOCIZER DOP, NCI-C52733, NUOPLAZ DOP, OCTOIL, OCTYL PHTHALATE, PALATINOL AH, PHTHALIC ACID DI(2-ETHYLHEXYL) ESTER, PHTHALIC ACID DIOCTYL ESTER, PHTHALIC ACID, BIS(2-ETHYLHEXYL) ESTER, PHTHALIC ACID, BIS-(2-ETHYLHEXYL ESTER), PITTSBURGH PX 138, PITTSBURGH PX-138, PLASTHALL DOP, PLATINOL AH, PLATINOL DOP, RC PLASTICIZER DOP, RCRA WASTE NUMBER U028, REOMOL D 79P, REOMOL DOP, SANSOCIZER DOP, SANSOCIZER R 8000, SCONAMOLL DOP, SICOL 150, STAFLEX DOP, TRUFLEX DOP, VESTINOL AH, VINICIZER 80, VINYCIZER 80, VINYCIZER 80K, WITCIZER 312 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 390.56 | L | -55 | 384 | 122 | 0.981 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 10 | 830 | 5000 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.63 | 52 | 310 |
Technical Basis
A review of available sources identified the following exposure limits (TWAs, STEL, and IDLH) and acute toxicity data. 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 1990 and 1994 IDLHs reported are the same, both developed from a multiplying factor (1000x) the published PEL-TWA (5 mg/m3) due to a lack of inhalation toxicity data. Given that available LD50 result in a wide range of TEEL values (100-10000 mg/m3), and IDLH priority (Table 3.1), the IDLH was selected as the TEEL-3. Lowest published toxic doses were evaluated as TEEL-2 bases; however, these did not report toxicity endpoints consistent with TEEL development. Instead, TEEL-2 values were derived according to Table 3.5. The REL-STEL was selected as the TEEL-1.
• TEEL-1 = REL-STEL (10 mg/m3)
• TEEL-2 = TEEL-3/6
• TEEL-3 = IDLH (1990/1994, 5000 mg/m3)
This review generated TEEL-3 and TEEL-2 values inconsistent with Rev. 29A. The Rev. 29A TEEL-3 basis was a rat oral LD50, while the current TEEL-3 is an IDLH. The Rev. 29A and current TEEL-2 methodology used are consistent, with differences due to the change in TEEL-3. The Rev. 29A and current TEEL-1 source, and values are consistent.
• TEEL-1 = REL-STEL (10 mg/m3)
• TEEL-2 = TEEL-3/6
• TEEL-3 = IDLH (1990/1994, 5000 mg/m3)
This review generated TEEL-3 and TEEL-2 values inconsistent with Rev. 29A. The Rev. 29A TEEL-3 basis was a rat oral LD50, while the current TEEL-3 is an IDLH. The Rev. 29A and current TEEL-2 methodology used are consistent, with differences due to the change in TEEL-3. The Rev. 29A and current TEEL-1 source, and values are consistent.
References
Acute toxicity data retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Bis_2-ethylhexyl_-phthalate
IDLH (1990/1994). https://www.cdc.gov/niosh/idlh/117817.html
Exposure limits: https://www.osha.gov/chemicaldata/144