PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Methyl parathion | 298-00-0 | 2783 |
6.00
15.01
4.01
15.02
4.08
4.05
7.01
8.00
11.00
4.06
|
|||||||||
| Formula | Synonyms | |||||||||||
| C8H10NO5PS | METHYL PARATHION, [LIQUID], METHYL PARATHION, MIXTURE, DRY, 8056 HC, 8056HC, ALKRON, AZOFOS, AZOPHOS, AZOPHOS®, BAY 11405, BAY E-601, BLADAN M, BLADAN-M, DALF, DALIF, DEMETHYLFENITROTHION, DIMETHYL 4-NITROPHENYL PHOSPHOROTHIOATE, DIMETHYL 4-NITROPHENYL PHOSPHOROTHIONATE, DIMETHYL P-NITROPHENYL MONOTHIOPHOSPHATE, DIMETHYL P-NITROPHENYL PHOSPHOROTHIONATE, DIMETHYL P-NITROPHENYL THIONOPHOSPHATE, DIMETHYL P-NITROPHENYL THIOPHOSPHATE, DIMETHYL PARATHION, DIMETHYLFENITROTHION, DIMETHYLPARATHION, E 601, ENT 17,292, ENT-17292, FOLIDOL 600, FOLIDOL M, FOLIDOL M 40, FOLIDOL M 50, FOLIDOL M-40, FOLIDOL-80, FOLIDOL-M, GEARPHOS, M-PARATHION, ME 1605, ME 605, ME 605SP, MEPTOX, METACID 50, METACIDE, METACIDE (INSECTICIDE), METAFOS, METAFOS (PESTICIDE), METAFOS(PESTICIDE), METAPHOR, METAPHOS, METHYL 1605, METHYL E 605, METHYL PARATHION, METHYL-E 605, METHYLPARATHION, MÉTHYLPARATHION, LIQUIDE (DOT FRENCH), METHYLTHIOPHOS, METIL PARATIÓN, LÍQUIDO (DOT SPANISH), METRON, METRON (PESTICIDE), METRON(PESTICIDE), MPT, NA 2783, NCI-C02971, NITRAN, NITROX, NITROX 80, O,O-DIMETHYL O-(P-NITROPHENYL) PHOSPHOROTHIOATE, O,O-DIMETHYL O-(P-NITROPHENYL) THIONOPHOSPHATE, O,O-DIMETHYL O-(P-NITROPHENYL) THIOPHOSPHATE, O,O-DIMETHYL O-P-NITROPHENYL THIOPHOSPHATE, O,O-DIMETHYL-O-(4-NITROPHENYL) PHOSPHOROTHIOATE, O,O-DIMETHYL-O-P-NITROPHENYL THIOPHOSPHATE, O,O-DIMETHYL-O-P-NITROPHENYLPHOSPHOROTHIOATE, OLEOVOFOTOX, P-NITROPHENYLDIMETHYLTHIONOPHOSPHATE, PARATAF, PARATHION METHYL, PARATHION METHYL HOMOLOG, PARATHION-METHYL, PARATUF, PARIDOL, PARTRON M, PENNCAP M, PENNCAP MLS, PHENOL, P-NITRO-, O-ESTER WITH O,O-DIMETHYL PHOSPHOROTHIOATE, PHOSPHOROTHIOIC ACID, O,O-DIMETHYL O-(4-NITROPHENYL) ESTER, PHOSPHOROTHIOIC ACID, O,O-DIMETHYL O-(P-NITROPHENYL) ESTER, PHOSPHOROTHIOIC ACID, O,O-DIMETHYL O-(P-NITROPHENYL) ESTER(D, PROBEL MP 2, QUINOPHOS, SINAFID M 48, SINAFID M-48, THIOPHENIT, VOFATOX, WOFATOX, WOFOTOX, WOLFATOX, YPHOS | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 263.21 | S | 38 | 20 | 1.358 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.11 | 1.2 | 3.5 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.010 | 0.11 | 0.33 |
Technical Basis
A review of available sources identified AEGL-2 and AEGL-3 exposure limits for this chemical. The AEGLs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1). Due to insufficient data, an AEGL-1 does not exist for this chemical, therefore the TEEL-1 value was derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values that are consistent with Rev. 29A*.
• TEEL-1 = TEEL-2/11
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values that are consistent with Rev. 29A*.
References
https://www.epa.gov/aegl/methyl-parathion-results-aegl-program