Mesalazine EP Impurity L CAS 118-91-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.118-91-2
Molecular FormulaC7H5ClO2
Molecular Weight156.57 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Mesalazine EP Impurity L CAS 118-91-2 chemical structure

Description

Mesalazine EP Impurity L (CAS 118-91-2) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H5ClO2. Molecular weight: 156.57 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC7H5ClO2
Molecular Weight156.57 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity>95%
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentCl-containing

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