Chemical Detail

Chemical NameFenthion
Synonym(s)4-Methylmercapto-3-methylphenyl dimethyl thiophosphate | AI3-25540 | BAYER 29493 | BAYER 9007 | BAYER S-1752 | Bay 29493 | Baycid | Baytex | Caswell No. 456F | DALF | DMTP | ENT 25,540 | EPA Pesticide Chemical Code 053301 | Entex | Fenthion 4E | Fenthion [O,O-Dimethyl O-[3-methyl-4-(methylthio)phenyl] ester, phosphorothioic acid] | Fenthionon | MPP | Mercaptophos | NCI-C08651 | O,O-Dimethyl O-(3-methyl-4-(methylthio) phenyl) ester, phosphorothioic acid | O,O-Dimethyl O-(3-methyl-4-(methylthio)phenyl)phosphorothioate | O,O-Dimethyl O-(3-methyl-4-methylmercaptophenyl)phosphorothioate | O,O-Dimethyl O-(4-(methylthio)-m-tolyl)phosphorothioate | O,O-Dimethyl O-(4-methylthio-3-methylphenyl) phosphorothioate | O,O-Dimethyl O-(4-methylthio-3-methylphenyl) thiophosphate | O,O-Dimethyl O-4-(methylmercapto)-3-methylphenyl phosphorothioate | O,O-Dimethyl-O-4-(methylmercapto)-3-methylphenyl thiophosphate | OMS 2 | Phenthion | Phosphorothioic acid, O,O-dimethyl O-(3-methyl-4-(methylthio)phenyl) ester | Phosphorothioic acid, O,O-dimethyl O-(4-(methylthio)-m-tolyl) ester | S 1752 | m-Cresol, 4-(methylthio)-, O-ester with O,O-dimethyl phosphorothioate
CASRN55-38-9
De minimis Limit %1
M,P/OU Threshould (lb)25,000/10,000
Listing TypeIndividually listed chemical
Effective Date1995-01-01
Chemical QualifierNo
MetalNo
Chemical of Special ConcernNo
Per- or Polyfluoroalkyl SubstanceNo
Structural image
Structural representation of Fenthion

Rulemaking Changes Affecting This Chemical

StatusEffective Reporting YearFR Proposed RuleFR Final Rule
Added199559 FR 1788 (1/12/1994)59 FR 61432 (11/30/1994)