DL-Cystine CAS 923-32-0

Purity >95%In StockPharmaceutical Standards
CAS No.923-32-0
Molecular FormulaC6H12N2O4S2
Molecular Weight240.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

DL-Cystine CAS 923-32-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 240.30 g/mol gives DL-Cystine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

DL-Cystine (CAS 923-32-0) is a high-purity analytical reference standard with the molecular formula C6H12N2O4S2 and a molecular weight of 240.30 g/mol.

Based on its molecular formula C6H12N2O4S2, DL-Cystine contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 240.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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

CATO manufactures DL-Cystine 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 FormulaC6H12N2O4S2
Molecular Weight240.30 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 Atoms2
Sulfur Atoms2

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