Ethyl 2-(hydroxyamino)-4-oxo-4,5-dihydrothiazole-5-carboxylate CAS 251577-82-9

Purity 97%+In StockPharmaceutical Standards
CAS No.251577-82-9
Molecular FormulaC6H8N2O4S
Molecular Weight204.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-(hydroxyamino)-4-oxo-4,5-dihydrothiazole-5-carboxylate CAS 251577-82-9 chemical structure

Description

The occurrence of Ethyl 2-(hydroxyamino)-4-oxo-4,5-dihydrothiazole-5-carboxylate is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Ethyl 2-(hydroxyamino)-4-oxo-4,5-dihydrothiazole-5-carboxylate (CAS 251577-82-9), a certified reference material (molecular formula C6H8N2O4S, MW 204.20 g/mol) for analytical method development and quality control.

Structurally, Ethyl 2-(hydroxyamino)-4-oxo-4,5-dihydrothiazole-5-carboxylate (C6H8N2O4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 204.20 g/mol, it falls into the medium-molecular-weight range. 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 Ethyl 2-(hydroxyamino)-4-oxo-4,5-dihydrothiazole-5-carboxylate 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 FormulaC6H8N2O4S
Molecular Weight204.20 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms2
Sulfur Atoms1

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