PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dimethoate | 60-51-5 | 2783 |
6.00
15.01
4.01
4.08
4.05
7.01
7.00
11.00
4.09
4.06
|
|||||||||
| Formula | Synonyms | |||||||||||
| C3.H12.N.O3.P.S2 | DIMETHOATE, 8014 BIS HC, AADIMETHOAL, ACETIC ACID, O,O-DIMETHYLDITHIOPHOSPHORYL-, N-MONO- METHYLAM, AMERICAN CYANAMID 12,880, BI 58, CL 12880, CYGON, CYGON 2E, CYGON 400, CYGON 4E, CYGON INSECTICIDE, DAPHENE, DE-FEND, DEMOS-L40, DIMETHOGEN, DIMETON, DIMEVUR, ENT 24650, EXPERIMENTAL INSECTICIDE 12,880, EXPERIMENTAL INSECTICIDE 12880, FIP, FOSFATOX R, FOSFOTOX, FOSFOTOX R, FOSFOTOX R 35, FOSTION MM, LURGO, NCI-C00135, O,O-DIMETHYL S-(N-METHYL- CARBAMOYLMETHYL) DITHIOPHOSPHATE, O,O-DIMETHYL S-(N-METHYLCARBAMOYLMETHYL) DITHIOPHOSPHATE, O,O-DIMETHYL S-(N-METHYLCARBAMOYLMETHYL) PHOSPHORODITHIOATE, O,O-DIMETHYL S-METHYLCARBAMOYLMETHYL PHOSPHORODITHIOATE, O,O-DIMETHYLDITHIOPHOSPHORYLACETIC ACID, N-MONOMETHYLAMIDE S, PEI 75, PERFECTHION, PERFEKTHION, PERFEKTHION S, PHOSPHAMID, PHOSPHAMIDE, PHOSPHOR- ODITHIOIC ACID, O,O-DIMETHYL S-(2-(METHYLAMINO)-2-, PHOSPHORODITHIOIC ACID O,O-DIMETHYL ESTER, ESTER WITH 2-MERC, PHOSPHORODITHIOIC ACID, O,O-DIMETHYL ESTER, S-ESTER WITH 2-M, PHOSPHORODITHIOIC ACID, O,O-DIMETHYL S-(METHYLCARBAMOYLMETHY, RACUSAN, ROGOR, ROGOR 20L, ROGOR 40, ROGOR L, ROGOR P, ROXION, S-METHYLCARBAMOYLMETHYL O,O-DIMETHYL PHOSPHORODITHIOATE, SALUT, SINORATOX, SISTEMIN, SYSTEMIN, SYSTEMIN (PESTICIDE), SYSTOATE, TARA, TARA 909 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 229.27 | S | 25 | 1.277 @ 65°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.60 | 30 | 170 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.064 | 3.2 | 18 |
Technical Basis
A review of available sources identified several LD50 toxicity data for various species and routes, and exposure limits (LOC, OEL-STEL). 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 LD50 of the most preferred species and route, a dog oral LD50, was selected as the TEEL-3 basis. The LOC was selected as the TEEL-2. The OEL-STEL (Poland) was selected as the TEEL-1.
• TEEL-1 = OEL-STEL (Poland)
• TEEL-2 = LOC (0.03 g/m3)
• TEEL-3 = Dog oral LD50 (400 mg/kg)
This review generated TEEL-3 and TEEL-2 values consistent with Rev. 29A and an inconsistent TEEL-1 value. The Rev. 29A TEEL-1 was derived from the TEEL-2, while the current TEEL-1 is an OEL-STEL (Poland).
• TEEL-1 = OEL-STEL (Poland)
• TEEL-2 = LOC (0.03 g/m3)
• TEEL-3 = Dog oral LD50 (400 mg/kg)
This review generated TEEL-3 and TEEL-2 values consistent with Rev. 29A and an inconsistent TEEL-1 value. The Rev. 29A TEEL-1 was derived from the TEEL-2, while the current TEEL-1 is an OEL-STEL (Poland).
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Dimethoate.
Dog oral LD50: Special Publication of the Entomological Society of America., 78-1(31), 1978. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Dimethoate
LOC: Retrieved from Appendix C (page C-4): https://www.epa.gov/sites/default/files/2015-09/documents/technical_guidance_for_hazard_analysis.pdf
OEL-STEL: https://ilv.ifa.dguv.de/limitvalues/53797