TECHNICAL PRODUCT MANUAL

Fenthion-sulfoxide

O-[4-(methanesulfinyl)-3-methylphenyl] O,O-dimethyl phosphorothioate

CAS Number	3761-41-9
Nominal Purity	99.27%
Pack Size	50 mg
Recommended Use	Controlled laboratory, analytical and research use only

IMPORTANT SAFETY AND REGULATORY NOTICE

Fenthion-sulfoxide is an oxidized derivative of the organophosphorus insecticide fenthion and should be handled as a pesticide-related analytical reference material. This product is supplied solely for controlled laboratory, analytical and research use and is not intended for agricultural application, clinical use, food/feed use, household use, veterinary use or environmental release. Purchase, import, possession, transport, handling, use and disposal must comply with applicable national and local laws and institutional safety procedures. This manual is not a substitute for a batch-specific Certificate of Analysis (CoA) or a jurisdiction-specific Safety Data Sheet (SDS).

Product Identification

Product name	Fenthion-sulfoxide
Chemical name	O-[4-(methanesulfinyl)-3-methylphenyl] O,O-dimethyl phosphorothioate
CAS number	3761-41-9
Molecular formula	C10H15O4PS2
Molecular weight	294.33 g/mol
Nominal purity	99.27% (specified batch value; confirm against the accompanying Certificate of Analysis)
Pack size	50 mg
Recommended use	Reference, analytical or controlled research use by trained personnel
Restrictions on use	Not for pesticide application, clinical use, food/feed use, household use, veterinary use or environmental release