2,5-Dibromothiophene-3-carboxylic acid CAS 7311-70-8

Purity 97%+In StockPharmaceutical Standards
CAS No.7311-70-8
Molecular FormulaC5H2Br2O2S
Molecular Weight285.94 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,5-Dibromothiophene-3-carboxylic acid CAS 7311-70-8 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 2,5-Dibromothiophene-3-carboxylic acid.

2,5-Dibromothiophene-3-carboxylic acid (CAS 7311-70-8), molecular formula C5H2Br2O2S and molecular weight 285.94 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2,5-Dibromothiophene-3-carboxylic acid (C5H2Br2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 285.94 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.

CATO manufactures 2,5-Dibromothiophene-3-carboxylic acid 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 FormulaC5H2Br2O2S
Molecular Weight285.94 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1959
Halogen ContentBr-containing
Sulfur Atoms1

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