2-Amino-4,5-dimethyl-thiophene-3-carboxylic acid methyl ester CAS 4651-93-8

Purity 97%+In StockPharmaceutical Standards
CAS No.4651-93-8
Molecular FormulaC8H11NO2S
Molecular Weight185.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Amino-4,5-dimethyl-thiophene-3-carboxylic acid methyl ester CAS 4651-93-8 chemical structure

Description

The occurrence of 2-Amino-4,5-dimethyl-thiophene-3-carboxylic acid methyl ester is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 2-Amino-4,5-dimethyl-thiophene-3-carboxylic acid methyl ester (CAS 4651-93-8), a certified reference material (molecular formula C8H11NO2S, MW 185.24 g/mol) for analytical method development and quality control.

Based on its molecular formula C8H11NO2S, 2-Amino-4,5-dimethyl-thiophene-3-carboxylic acid methyl ester contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 185.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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

As a certified reference material (CRM), 2-Amino-4,5-dimethyl-thiophene-3-carboxylic acid methyl ester 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 FormulaC8H11NO2S
Molecular Weight185.24 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms1
Sulfur Atoms1

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