(r)-2-(1-Hydroxyethyl)-4-methylphenol CAS 156597-61-4

Purity 97%+In StockPharmaceutical Standards
CAS No.156597-61-4
Molecular FormulaC9H12O2
Molecular Weight152.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(r)-2-(1-Hydroxyethyl)-4-methylphenol CAS 156597-61-4 chemical structure

Description

CATO supplies (r)-2-(1-Hydroxyethyl)-4-methylphenol (CAS 156597-61-4), a certified reference material (molecular formula C9H12O2, MW 152.19 g/mol) for analytical method development and quality control.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, (r)-2-(1-Hydroxyethyl)-4-methylphenol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 152.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), (r)-2-(1-Hydroxyethyl)-4-methylphenol 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 FormulaC9H12O2
Molecular Weight152.19 g/mol
AppearanceOff-white to pale yellow crystalline powder
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.)2001

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