PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DDT; (Dichlorodiphenyltrichloroethane) | 50-29-3 | 2761 |
15.01
11.01
4.08
4.05
7.01
8.00
7.00
11.00
4.06
4.10
|
|||||||||
| Formula | Synonyms | |||||||||||
| C14H9Cl5 | DDT, 1,1^-(2,2,2-TRICHLOROETHYLIDENE)BIS(4-CHLOROBENZENE), 1,1,1-TRICHLORO-2,2-BIS(P-CHLOROPHENYL) ETHANE, 1,1,1-TRICHLORO-2,2-BIS(P-CHLOROPHENYL)ETHANE, 1,1,1-TRICHLORO-2,2-DI(4-CHLOROPHENYL)ETHANE, 1,1,1-TRICHLORO-2,2-DI(P-CHLOROPHENYL)ETHANE, 1,1-BIS(4-CHLOROPHENYL)-2,2,2-TRICHLOROETHANE, 1,1-BIS(P-CHLOROPHENYL)-2,2,2-TRICHLOROETHANE, 2,2,2-TRICHLORO-1,1-BIS(4-CHLOROPHENYL)ETHANE, 2,2-BIS(P-CHLOROPHENYL)-1,1,1-TRICHLOROETHANE, 4,4'-DDT, 4,4'-DICHLORODIPHENYLTRICHLOROETHANE, AAVERO-EXTRA, AGRITAN, ALPHA,ALPHA-BIS(P-CHLOROPHENYL)-BETA,BETA,BETA-TRICHLORETHAN, ANOFEX, ARKOTINE, AZOTOX, AZOTOX M 33, BENZOCHLORYL, BOSAN SUPRA, BOVIDERMOL, CHLOROPHENOTHANE, CHLOROPHENOTOXUM, CHLORPHENOTHAN, CHLORPHENOTOXUM, CITOX, CLOFENOTAN, CLOFENOTANE, DDT (DOT FRENCH), DDT (DOT SPANISH), DEDELO, DEOVAL, DETOX, DETOXAN, DIBOVAN, DIBOVIN, DICHLORODIPHÉNYLTRICHLORÉTHANE(DDT) (DOT FRENCH), DICHLORODIPHENYLTRICHLOROETHANE, DICHLORODIPHENYLTRICHLOROETHANE (DDT), DICLORODIFENILTRICLOROETANO (DDT) (DOT SPANISH), DICOPHANE, DIDIGAM, DIDIMAC, DIPHENYLTRICHLOROETHANE, DODAT, DYKOL, ENT 1,506, ENT-1506, ESTONATE, ETHANE, 1,1,1-TRICHLORO-2,2-BIS(4-CHLOROPHENYL)-, ETHANE, 1,1,1-TRICHLORO-2,2-BIS(P-CHLOROPHENYL)-, GENITOX, GESAFID, GESAPON, GESAREX, GESAROL, GUESAPON, GUESAROL, GYRON, HAVERO-EXTRA, HILDIT, IVORAN, IXODEX, KOPSOL, MICRO DDT 75, MUTOXAN, MUTOXIN, NA 2761, NCI-C00464, NEOCID, NEOCIDOL, NEOCIDOL (SOLID), OMS 16, P,P'-DDT, P,P'-DICHLORODIPHENYLTRICHLOROETHANE, P,P'-DICHLORODIPHENYLTRICHLOROMETHYLMETHANE, PARACHLOROCIDUM, PEB1, PENTACHLORIN, PENTECH, PENTICIDUM, PPZEIDAN, R50, RCRA WASTE NUMBER U061, RUKSEAM, SANTOBANE, TAFIDEX, TECH DDT, TRICHLOROBIS(4'-CHLOROPHENYL)ETHANE, TRICHLOROBIS(4-CHLOROPHENYL)ETHANE, ZEIDANE, ZERDANE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 354.49 | S | 108.5 | 260 | 20 | 0.98-0.99 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.8 | 83 | 800 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.055 | 5.7 | 55 |
Technical Basis
A review of available sources identified exposure limits (IDLH, OEL-STEL, TWAs) and acute toxicity data (TDLo, LDLo, LD50) for numerous routes and species. 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 IDLH (1990/1994) was selected as the TEEL-3. The TEEL-2 value was derived according to Table 3.5. The OEL-STEL (15-minute, Poland) was selected as the TEEL-1.
• PAC-1 = TEEL-1 = OEL-STEL (Poland, 0.8 mg/m3)
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = IDLH (1990/1994, 500 mg/m3)
This review generated PAC-3 and PAC-2 values inconsistent with Rev. 29A and a PAC-1 value consistent with Rev. 29A. The Rev. 29A TEEL-3 basis was a dog oral LD50, while the current TEEL-3 is an exposure limit (IDLH), a more preferred source (Table 3.1). Rev. 29 and current TEEL-2 use the same methodology (Table 3.5), with differences due to the change in TEEL-3. The Rev. 29A and current TEEL-1 values, source, and methodology are consistent.
• PAC-1 = TEEL-1 = OEL-STEL (Poland, 0.8 mg/m3)
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = IDLH (1990/1994, 500 mg/m3)
This review generated PAC-3 and PAC-2 values inconsistent with Rev. 29A and a PAC-1 value consistent with Rev. 29A. The Rev. 29A TEEL-3 basis was a dog oral LD50, while the current TEEL-3 is an exposure limit (IDLH), a more preferred source (Table 3.1). Rev. 29 and current TEEL-2 use the same methodology (Table 3.5), with differences due to the change in TEEL-3. The Rev. 29A and current TEEL-1 values, source, and methodology are consistent.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Clofenotane
TWA and IDLH: https://www.cdc.gov/niosh/idlh/50293.html
OEL STELs and TWAs: https://ilv.ifa.dguv.de/limitvalues/60396