EP1898707A2 — Process for preparing malathion for pharmaceutical use
Assigned to Taro Pharmaceuticals North America Inc · Expires 2008-03-19 · 18y expired
What this patent protects
The present invention provides a process for preparing a highly pure form of malathion having a reduced level of toxic impurities. In addition, the malathion prepared by the process of this invention is storage stable. The level of toxic impurities in the malathion, e.g., isomala…
USPTO Abstract
The present invention provides a process for preparing a highly pure form of malathion having a reduced level of toxic impurities. In addition, the malathion prepared by the process of this invention is storage stable. The level of toxic impurities in the malathion, e.g., isomalathion, O,O,S-trimethyl phosphorodithioate (MeOOSPS), O, O, S-trimethyl phosphorothioate (MeOOSPO), O,S,S-trimethyl phosphorodithioate (MeOSSPO), malaoxon, isomalathion, diethyl fumarate, methyl malathion, dimethyl malathion, O,O-methyl, ethyl-S-(1,2-dicarboethoxy)ethyl-phosphorodithioate arse lower than that of any other commercial preparation of malathion that may be used for pharmaceutical purposes.
Drugs covered by this patent
- Ovide (MALATHION) · Taro
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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