3,5-Dichlorothiophene-2-carbaldehyde CAS 67482-51-3

Purity 97%+In StockPharmaceutical Standards
CAS No.67482-51-3
Molecular FormulaC5H2Cl2OS
Molecular Weight181.04 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,5-Dichlorothiophene-2-carbaldehyde CAS 67482-51-3 chemical structure

Description

3,5-Dichlorothiophene-2-carbaldehyde (CAS 67482-51-3), molecular formula C5H2Cl2OS and molecular weight 181.04 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3,5-Dichlorothiophene-2-carbaldehyde (C5H2Cl2OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine 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 181.04 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.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC5H2Cl2OS
Molecular Weight181.04 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1976
Halogen ContentCl-containing
Sulfur Atoms1

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