2-Chloro-3-((4-isopropyl-3-methylphenyl)amino)naphthalene-1,4-dione CAS 866153-67-5

Purity 97%+In StockPharmaceutical Standards
CAS No.866153-67-5
Molecular FormulaC20H18ClNO2
Molecular Weight339.82 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Chloro-3-((4-isopropyl-3-methylphenyl)amino)naphthalene-1,4-dione CAS 866153-67-5 chemical structure

Description

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.

2-Chloro-3-((4-isopropyl-3-methylphenyl)amino)naphthalene-1,4-dione (CAS 866153-67-5), molecular formula C20H18ClNO2 and molecular weight 339.82 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2-Chloro-3-((4-isopropyl-3-methylphenyl)amino)naphthalene-1,4-dione (C20H18ClNO2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures 2-Chloro-3-((4-isopropyl-3-methylphenyl)amino)naphthalene-1,4-dione 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 FormulaC20H18ClNO2
Molecular Weight339.82 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms1

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