Carbocysteine/Carbocisteine CAS 638-23-3

Purity >95%In StockPharmaceutical Standards
CAS No.638-23-3
Molecular FormulaC5H9NO4S
Molecular Weight179.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Carbocysteine/Carbocisteine CAS 638-23-3 chemical structure

Description

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

CATO supplies Carbocysteine/Carbocisteine (CAS 638-23-3), a certified reference material (molecular formula C5H9NO4S, MW 179.19 g/mol) for analytical method development and quality control.

The molecular framework of Carbocysteine/Carbocisteine (C5H9NO4S) is characterized by a carbohydrate-derived structure, an amide group, a sulfone group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

As a certified reference material (CRM), Carbocysteine/Carbocisteine 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 FormulaC5H9NO4S
Molecular Weight179.19 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957
Nitrogen Atoms1
Sulfur Atoms1

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