3-hydroxy-4-[(4-methylphenyl)diazenyl]-2-naphthoic acid 82896-77-3 CAS 82896-77-3

Purity 97%+In StockPharmaceutical Standards
CAS No.82896-77-3
Molecular FormulaC18H14N2O3
Molecular Weight306.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-hydroxy-4-[(4-methylphenyl)diazenyl]-2-naphthoic acid 82896-77-3 CAS 82896-77-3 chemical structure

Description

The occurrence of 3-hydroxy-4-[(4-methylphenyl)diazenyl]-2-naphthoic acid 82896-77-3 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-hydroxy-4-[(4-methylphenyl)diazenyl]-2-naphthoic acid 82896-77-3 (CAS 82896-77-3) is a high-purity analytical reference standard with the molecular formula C18H14N2O3 and a molecular weight of 306.32 g/mol.

The molecular framework of 3-hydroxy-4-[(4-methylphenyl)diazenyl]-2-naphthoic acid 82896-77-3 (C18H14N2O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 3-hydroxy-4-[(4-methylphenyl)diazenyl]-2-naphthoic acid 82896-77-3 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 FormulaC18H14N2O3
Molecular Weight306.32 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1980
Nitrogen Atoms2

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