4-Mercaptobenzene-1,2-diol CAS 27320-22-5

Purity 97%+In StockPharmaceutical Standards
CAS No.27320-22-5
Molecular FormulaC6H6O2S
Molecular Weight142.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Mercaptobenzene-1,2-diol CAS 27320-22-5 chemical structure

Description

As a certified reference material (CRM), 4-Mercaptobenzene-1,2-diol 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.

CATO supplies 4-Mercaptobenzene-1,2-diol (CAS 27320-22-5), a certified reference material (molecular formula C6H6O2S, MW 142.18 g/mol) for analytical method development and quality control.

Structurally, 4-Mercaptobenzene-1,2-diol (C6H6O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 142.18 g/mol, it falls into the low-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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

Physical & Chemical Properties

Molecular FormulaC6H6O2S
Molecular Weight142.18 g/mol
Purity97%+
StorageStore at 2-8°C
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
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Sulfur Atoms1

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