2-(2-Chlorophenyl)-5-(thiophen-2-yl)-1,3,4-oxadiazole CAS 331987-49-6

Purity 97%+In StockPharmaceutical Standards
CAS No.331987-49-6
Molecular FormulaC12H7ClN2OS
Molecular Weight262.71 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(2-Chlorophenyl)-5-(thiophen-2-yl)-1,3,4-oxadiazole CAS 331987-49-6 chemical structure

Description

The occurrence of 2-(2-Chlorophenyl)-5-(thiophen-2-yl)-1,3,4-oxadiazole is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-(2-Chlorophenyl)-5-(thiophen-2-yl)-1,3,4-oxadiazole (CAS 331987-49-6), molecular formula C12H7ClN2OS and molecular weight 262.71 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2-(2-Chlorophenyl)-5-(thiophen-2-yl)-1,3,4-oxadiazole (C12H7ClN2OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 262.71 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 2-(2-Chlorophenyl)-5-(thiophen-2-yl)-1,3,4-oxadiazole 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 FormulaC12H7ClN2OS
Molecular Weight262.71 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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