(Z)-2-Methyl-4-((5-nitrothiophen-2-yl)methylene)oxazol-5(4H)-one CAS 89035-34-7

Purity 97%+In StockPharmaceutical Standards
CAS No.89035-34-7
Molecular FormulaC9H6N2O4S
Molecular Weight238.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(Z)-2-Methyl-4-((5-nitrothiophen-2-yl)methylene)oxazol-5(4H)-one CAS 89035-34-7 chemical structure

Description

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.

(Z)-2-Methyl-4-((5-nitrothiophen-2-yl)methylene)oxazol-5(4H)-one (CAS 89035-34-7), molecular formula C9H6N2O4S and molecular weight 238.22 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (Z)-2-Methyl-4-((5-nitrothiophen-2-yl)methylene)oxazol-5(4H)-one (C9H6N2O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 238.22 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.

As a certified reference material (CRM), (Z)-2-Methyl-4-((5-nitrothiophen-2-yl)methylene)oxazol-5(4H)-one 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 FormulaC9H6N2O4S
Molecular Weight238.22 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982
Nitrogen Atoms2
Sulfur Atoms1

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