Pantoprazole sodium sesquihydrate

Pantoprazole sodium sesquihydrate (CAS 164579-32-2 ), also marketed under the brand name Pantosec, is the stable hydrated sodium salt form of pantoprazole used as the active pharmaceutical ingredient in proton pump inhibitor drug products.

It is the commercially preferred form for solid and injectable dosage manufacturing due to its defined hydration state and improved handling characteristics. The primary application is in the manufacture of enteric-coated tablets.

It is also used for delayed-release capsules for the treatment of acid-related gastrointestinal conditions. It is formulated into lyophilized powders for intravenous injection, where the sodium salt form supports aqueous solubility requirements.

Generic drug manufacturers source this API to produce finished dose forms targeting hospital and retail pharmacy supply chains. Formulators working on bioequivalence studies or line extensions also procure it as a reference-grade material.

Pantoprazole sodium sesquihydrate is supplied as a white to off-white crystalline powder. It is available in pharmaceutical-grade specifications conforming to USP , BP , and Ph. Eur. monographs for global compliance.

The material is provided with documentation packages including CoA, DMF references, and ICH-compliant impurity profiles. Packaging typically ranges from small quantities for R&D use to bulk quantities for commercial manufacturing.

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