2-Bromo-5-(3-chlorophenyl)-1,3,4-thiadiazole CAS 57709-57-6

Purity 97%+In StockPharmaceutical Standards
CAS No.57709-57-6
Molecular FormulaC8H4BrClN2S
Molecular Weight275.55 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Bromo-5-(3-chlorophenyl)-1,3,4-thiadiazole CAS 57709-57-6 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.

2-Bromo-5-(3-chlorophenyl)-1,3,4-thiadiazole (CAS 57709-57-6), molecular formula C8H4BrClN2S and molecular weight 275.55 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H4BrClN2S, 2-Bromo-5-(3-chlorophenyl)-1,3,4-thiadiazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 275.55 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.

As a certified reference material (CRM), 2-Bromo-5-(3-chlorophenyl)-1,3,4-thiadiazole 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 FormulaC8H4BrClN2S
Molecular Weight275.55 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973
Halogen ContentCl/Br-containing
Nitrogen Atoms2
Sulfur Atoms1

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