2-Methyl-5-nitrothiophene CAS 42297-94-9

Purity 97%+In StockPharmaceutical Standards
CAS No.42297-94-9
Molecular FormulaC5H5NO2S
Molecular Weight143.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Methyl-5-nitrothiophene CAS 42297-94-9 chemical structure

Description

2-Methyl-5-nitrothiophene (CAS 42297-94-9) is a high-purity analytical reference standard with the molecular formula C5H5NO2S and a molecular weight of 143.16 g/mol.

Based on its molecular formula C5H5NO2S, 2-Methyl-5-nitrothiophene contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 143.16 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.

CATO manufactures 2-Methyl-5-nitrothiophene 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 FormulaC5H5NO2S
Molecular Weight143.16 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
CAS Registry Year (est.)1969
Nitrogen Atoms1
Sulfur Atoms1

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