PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dichlorovos; (Dichlorvos) | 62-73-7 | 2783 |
6.00
4.01
15.02
4.08
4.05
7.01
8.00
7.00
11.00
4.07
|
|||||||||
| Formula | Synonyms | |||||||||||
| C4H7Cl2O4P | DICHLORVOS, DICHLORVOS MIXTURE, [DRY], 2,2-DICHLOROETHENOL DIMETHYL PHOSPHATE, 2,2-DICHLOROETHENYL DIMETHYL PHOSPHATE, 2,2-DICHLOROETHENYL PHOSPHATE, 2,2-DICHLOROETHENYL PHOSPHORIC ACID DIMETHYL ESTER, 2,2-DICHLOROVINYL, 2,2-DICHLOROVINYL ALCOHOL DIMETHYL PHOSPHATE, 2,2-DICHLOROVINYL DIMETHYL PHOSPHATE, 2,2-DICHLOROVINYL DIMETHYL PHOSPHORIC ACID ESTER, APAVAP, ASTROBOT, ATGARD, ATGARD C, ATGARD V, BAY-19149, BAYER 19149, BENFOS, BIBESOL, BREVINYL, BREVINYL E 50, BREVINYL E50, BREVINYL WEEDAT 0002, CANOGARD, CEKUSAN, CELCUSAN, CHLORVINPHOS, CYANOPHOS, CYPONA, DDVF, DDVP, DDVP (INSECTICIDE), DEDEVAP, DERIBAN, DERRIBANTE, DES, DEVIKOL, DICHLOFOS, DICHLORMAN, DICHLOROPHOS, DICHLOROVAS, DICHLOROVINPHOS, DICHLOROVOS, DICHLOROVOS MIXTURE, DRY, DICHLORPHOS, DICHLORVOS (DOT FRENCH), DICLORVOS (DOT SPANISH), DIMETHYL 2,2-DICHLOROETHENYL PHOSPHATE, DIMETHYL 2,2-DICHLOROVINYL PHOSPHATE, DIMETHYL DICHLOROVINYL PHOSPHATE, DIVIPAN, DUO-KILL, DURAVOS, ENT 20738, EQUIGARD, EQUIGEL, ESTROSEL, ESTROSOL, ETHENOL, 2,2-DICHLORO-, DIMETHYL PHOSPHATE, FECAMA, FEKAMA, FLY FIGHTER, FLY-DIE, HERKAL, HERKOL, INSECTIGAS D, KRECALVIN, LINDAN, MAFU, MAFU STRIP, MARVEX, MOPARI, MOPARI UN NA 2783, NA 2783, NCI-C00113, NEFRAFOS, NERKOL, NO-PEST, NO-PEST STRIP, NOGOS, NOGOS 50, NOGOS 50 EC, NOGOS 500, NOGOS G, NOVOTOX, NSC-6738, NUVA, NUVAN, NUVAN 100 EC, NUVAN 100EC, NUVAN 500 EC, NUVAN 7, O,O-DIMETHYL 2,2-DICHLOROVINYL PHOSPHATE, O,O-DIMETHYL DICHLOROVINYL PHOSPHATE, O,O-DIMETHYL O-2,2-DICHLOROVINYL PHOSPHATE, O,O-DIMETHYL PHOSPHATE, OKO, OMS 14, PANAPLATE, PHOSPHORIC ACID, 2,2-DICHLOROETHENYL DIMETHYL ESTER, PHOSPHORIC ACID, 2,2-DICHLOROVINYL DIMETHYL ESTER, PHOSPHORIC ACID, 2-DICHLOROETHENYL DIMETHYL ESTER, PHOSVIT, PHOSVIT 75, PRIMA U, SD 1750, SD-1750, SD1750, SZKLARNIAK, TAP 9VP, TASK, TASK TABS, TENAC, TETRAVOS, UDVF, UNIFOS, UNIFOS (PESTICIDE), UNIFOS 50 EC, UNIFOS 50EC, UNITOX, VAPONA, VAPONA II, VAPONA INSECTICIDE, VAPONITE, VAPORA II, VERDICAN, VERDIPOR, VINYL ALCOHOL, VINYL ALCOHOL, 2,2-DICHLORO-, DIMETHYL PHOSPHATE, VINYLOFOS, VINYLOPHOS, WINYLOPHOS | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 220.98 | L | 25 | 1.42 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.0 | 20 | 200 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.22 | 2.2 | 22 |
Technical Basis
A review of available sources identified exposure limits (IDLH, LOC, TWAs, OEL-STELs) and several acute toxicity data for various 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 was selected as the TEEL-3. The LOC was selected as the TEEL-2. The MAK-STEL (Germany, DFG) was selected as the TEEL-1.
• PAC-1 = TEEL-1 = MAK-STEL (2 mg/m3)
• PAC-2 = TEEL-2 = LOC (0.020 g/m3)
• PAC-3 = TEEL-3 = IDLH 1990 (200 mg/m3)
This review generated PAC-3 and PAC-2 values consistent with Rev. 29A and a PAC-1 value inconsistent with Rev. 29A. The Rev. 29A TEEL-1 was derived from the TEEL-2 (Table 3.5), while the current recommendation is an exposure limit, OEL-STEL. The Rev. 29A and current TEEL-2 and TEEL-3, values, source and methodology are consistent.
• PAC-1 = TEEL-1 = MAK-STEL (2 mg/m3)
• PAC-2 = TEEL-2 = LOC (0.020 g/m3)
• PAC-3 = TEEL-3 = IDLH 1990 (200 mg/m3)
This review generated PAC-3 and PAC-2 values consistent with Rev. 29A and a PAC-1 value inconsistent with Rev. 29A. The Rev. 29A TEEL-1 was derived from the TEEL-2 (Table 3.5), while the current recommendation is an exposure limit, OEL-STEL. The Rev. 29A and current TEEL-2 and TEEL-3, values, source and methodology are consistent.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Dichlorvos
MAK-STEL: https://ilv.ifa.dguv.de/limitvalues/20070
LOC: Appendix C (page C-4); https://www.epa.gov/sites/default/files/2015-09/documents/technical_guidance_for_hazard_analysis.pdf
IDLH: https://www.cdc.gov/niosh/idlh/62737.html