5-((4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)methyl)-1,3,4-oxadiazole-2-thiol CAS 175202-84-3

Purity 97%+In StockPharmaceutical Standards
CAS No.175202-84-3
Molecular FormulaC8H9BrN4OS
Molecular Weight289.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-((4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)methyl)-1,3,4-oxadiazole-2-thiol CAS 175202-84-3 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-((4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)methyl)-1,3,4-oxadiazole-2-thiol.

5-((4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)methyl)-1,3,4-oxadiazole-2-thiol (CAS 175202-84-3), molecular formula C8H9BrN4OS and molecular weight 289.15 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5-((4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)methyl)-1,3,4-oxadiazole-2-thiol (C8H9BrN4OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 289.15 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), 5-((4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)methyl)-1,3,4-oxadiazole-2-thiol 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 FormulaC8H9BrN4OS
Molecular Weight289.15 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2007
Halogen ContentBr-containing
Nitrogen Atoms4
Sulfur Atoms1

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