Methionine Impurity 11 CAS 33770-86-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.33770-86-4
Molecular FormulaC8H14O6S2
Molecular Weight270.32 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Methionine Impurity 11 CAS 33770-86-4 chemical structure

Description

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

Methionine Impurity 11 (CAS 33770-86-4) is a certified pharmaceutical impurity reference standard with the molecular formula C8H14O6S2 and a molecular weight of 270.32 g/mol.

Structurally, Methionine Impurity 11 (C8H14O6S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 270.32 g/mol, it falls into the medium-molecular-weight range.

CATO manufactures Methionine Impurity 11 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC8H14O6S2
Molecular Weight270.32 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1966
Sulfur Atoms2

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