Methoxalic Anhydride CAS 5781-55-5

Purity 97%+In StockPharmaceutical Standards
CAS No.5781-55-5
Molecular FormulaC6H6O7
Molecular Weight190.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methoxalic Anhydride CAS 5781-55-5 chemical structure

Description

CATO supplies Methoxalic Anhydride (CAS 5781-55-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C6H6O7. Molecular weight: 190.11 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC6H6O7
Molecular Weight190.11 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

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