2,3,5-Trihydroxybenzoic acid CAS 33580-60-8

Purity 97%+In StockPharmaceutical Standards
CAS No.33580-60-8
Molecular FormulaC7H6O5
Molecular Weight170.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,3,5-Trihydroxybenzoic acid CAS 33580-60-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 170.12 g/mol gives 2,3,5-Trihydroxybenzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2,3,5-Trihydroxybenzoic acid (CAS 33580-60-8), molecular formula C7H6O5 and molecular weight 170.12 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C7H6O5, 2,3,5-Trihydroxybenzoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 170.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), 2,3,5-Trihydroxybenzoic acid 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 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.)1966

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