PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Parathion | 56-38-2 | 2783 |
6.00
15.01
4.01
4.08
4.05
7.01
8.00
7.00
11.00
4.09
|
|||||||||
| Formula | Synonyms | |||||||||||
| C10H14NO5PS | PARATHION, PARATHION MIXTURE, LIQUID, PARATHION AND COMPRESSED GAS MIXTURE, PARATHION MIXTURE, DRY, AAT, AATP, AC 3422, ACC 3422, ALKRON, ALLERON, AMERICAN CYANAMID 3422, APHAMITE, ARALO, B 404, BAY 1605, BAY E-605, BAYER E-605, BLADAN, BLADAN F, COMPOUND 3422, COROTHION, CORTHION, CORTHIONE, DANTHION, DIETHYL 4-NITROPHENYL PHOSPHOROTHIOATE, DIETHYL 4-NITROPHENYL PHOSPHOROTHIONATE, DIETHYL P-NITROPHENYL PHOSPHOROTHIONATE, DIETHYL P-NITROPHENYL THIONOPHOSPHATE, DIETHYL P-NITROPHENYL THIOPHOSPHATE, DIETHYL PARA-NITROPHENOL THIOPHOSPHATE, DIETHYL PARATHION, DIETHYL-P-NITROPHENYL MONOTHIOPHOSPHATE, DIETHYLPARATHION, DNTP, DPP, DREXEL PARATHION 8E, E 605, E 605 F, E 605 FORTE, E 605F, E 605FT20, ECATOX, ECATOX 20, EKATIN WF & WF ULV, EKATOX, EKATOX 20, ENT 15,108, ENT 15108, ETHLON, ETHYL PARATHION, ETILON, FOLIDOL, FOLIDOL E, FOLIDOL E & E 605, FOLIDOL E-605, FOLIDOL E605, FOLIDOL OIL, FOSFERMO, FOSFERNO, FOSFEX, FOSFIVE, FOSOVA, FOSTERN, FOSTOX, GEARPHOS, GENITHION, KOLPHOS, KYPTHION, LETHALAIRE G-54, LIROTHION, MURFOS, NA 2783, NA 2783(DOT), NCI-C00226, NIRAN, NIRAN E-4, NITROSTIGMINE, NITROSTYGMINE, NIUIF 100, NIUIF-100, NOURITHION, O,O-DIETHYL O-(4-NITROPHENYL) PHOSPHOROTHIOATE, O,O-DIETHYL O-(P-NITROPHENYL) PHOSPHOROTHIOATE, O,O-DIETHYL O-(P-NITROPHENYL) THIONOPHOSPHATE, O,O-DIETHYL O-4-NITROPHENYL THIOPHOSPHATE, O,O-DIETHYL O-P- NITROPHENYL PHOSPHOROTHIOATE, O,O-DIETHYL O-P-NITROPHENYL THIOPHOSPHATE, O,O-DIETHYL-O(P-NITROPHENYL) PHOSPHOROTHIOATE, O,O-DIETHYL-O-(P-NITROPHENYL)THIONOPHOSPHATE, OLEOFOS 20, OLEOPARAPHENE, OLEOPARATHENE, OLEOPARATHION, OMS 19, ORTHOPHOS, P-NITROPHENOL O-ESTER WITH O,O-DIETHYLPHOSPHOROTHIOATE, PAC, PACOL, PANTHION, PARADUST, PARAFLOW, PARAMAR, PARAMAR 50, PARAPHOS, PARATHENE, PARATHION (DOT FRENCH), PARATHION LIQUID, PARATHION-ETHYL, PARATIÓN (DOT SPANISH), PARAWET, PENNCAP E, PESTOX PLUS, PETHION, PHENPHOS, PHOSKIL, PHOSPHEMOL, PHOSPHENOL, PHOSPHOROTHIOIC ACID O,O-DIETHYL O-(4-NITROPHENYL) ESTER, PHOSPHOROTHIOIC ACID, O,O-DIETHYL O-(P-NITROPHENYL) ESTER, PHOSPHOROTHIOIC ACID, O,O-DIETHYL O-(P-NITROPHENYL) ESTER(LI, PHOSPHOROTHIOIC ACID, O,O-DIETHYL-O-(4-NITROPHENYL) ESTER, PHOSPHOROTHIOIC ACID, O,O-DIETHYL-O-(P-NITROPHENYL) ESTER, PHOSPHOROTHIOIC ACID, O,O-DIETHYL-O-P-NITROPHENYL ESTER, PHOSPHOSTIGMINE, RB, RCRA WASTE NUMBER P089, RHODIASOL, RHODIATOX, RHODIATROX, SELEPHOS, SIXTY-THREE SPECIAL E.C. INSECTICIDE, SNP, SOPRATHION, STABILIZED ETHYL PARATHION, STATHION, STRATHION, SULPHOS, SUPER RODIATOX, T-47, THIOFOS, THIOMEX, THIOPHOS, THIOPHOS 3422, TIOFOS, TOX 47, VAPOPHOS, VITREX | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 291.26 | L | 6.1 | 375 | 20 | 1.2681 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.14 | 1.5 | 2.0 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.012 | 0.13 | 0.17 |
Technical Basis
A review of available sources identified exposure limits for this chemical including an AEGL-2 and AEGL-3. 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*. Minor differences in the reported TEEL-1 value in units of mg/m3 may be due to rounding.
• TEEL-1 = TEEL-2/11
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values that are consistent with Rev. 29A*. Minor differences in the reported TEEL-1 value in units of mg/m3 may be due to rounding.
References
AEGLs: https://www.epa.gov/aegl/parathion-results-aegl-program
Other exposure limits: https://www.osha.gov/chemicaldata/413