Poly(styrene-co-maleic anhydride) CAS 26762-29-8

Purity 97%+In StockPharmaceutical Standards
CAS No.26762-29-8
Molecular FormulaC9H12
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Poly(styrene-co-maleic anhydride) CAS 26762-29-8 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Poly(styrene-co-maleic anhydride).

Poly(styrene-co-maleic anhydride) (CAS 26762-29-8), molecular formula C9H12C8H8C4H2O3 and molecular weight 322.40 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Poly(styrene-co-maleic anhydride) (C9H12C8H8C4H2O3) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), Poly(styrene-co-maleic anhydride) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC9H12 C8H8 C4H2O3
Molecular Weight322.40 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964

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Why CATO?