2,3,6-Trihydroxybenzoic acid CAS 16534-78-4

Purity 97%+In StockPharmaceutical Standards
CAS No.16534-78-4
Molecular FormulaC7H6O5
Molecular Weight170.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,3,6-Trihydroxybenzoic acid CAS 16534-78-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 170.12 g/mol gives 2,3,6-Trihydroxybenzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2,3,6-Trihydroxybenzoic acid (CAS 16534-78-4), molecular formula C7H6O5 and molecular weight 170.12 g/mol, is a CATO reference standard with documented purity and traceability.

2,3,6-Trihydroxybenzoic acid (C7H6O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

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 2,3,6-Trihydroxybenzoic 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 FormulaC7H6O5
Molecular Weight170.12 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961

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