5-Chlorothiazole-2-carboxylic Acid CAS 101012-16-2

Purity 97%+In StockPharmaceutical Standards
CAS No.101012-16-2
Molecular FormulaC4H2ClNO2S
Molecular Weight163.58 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Chlorothiazole-2-carboxylic Acid CAS 101012-16-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 163.58 g/mol gives 5-Chlorothiazole-2-carboxylic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Chlorothiazole-2-carboxylic Acid (CAS 101012-16-2) is a high-purity analytical reference standard with the molecular formula C4H2ClNO2S and a molecular weight of 163.58 g/mol.

Based on its molecular formula C4H2ClNO2S, 5-Chlorothiazole-2-carboxylic Acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 163.58 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.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), 5-Chlorothiazole-2-carboxylic Acid 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 FormulaC4H2ClNO2S
Molecular Weight163.58 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1985
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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