methyl 4-hydroxy-2-methyl-benzoate CAS 57556-31-7

Purity 97%+In StockPharmaceutical Standards
CAS No.57556-31-7
Molecular FormulaC9H16O3
Molecular Weight172.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

methyl 4-hydroxy-2-methyl-benzoate CAS 57556-31-7 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 methyl 4-hydroxy-2-methyl-benzoate.

CATO supplies methyl 4-hydroxy-2-methyl-benzoate (CAS 57556-31-7), a certified reference material (molecular formula C9H16O3, MW 172.22 g/mol) for analytical method development and quality control.

The molecular framework of methyl 4-hydroxy-2-methyl-benzoate (C9H16O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

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), methyl 4-hydroxy-2-methyl-benzoate 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 FormulaC9H16O3
Molecular Weight172.22 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1973

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