5-Hydroxy-4-(naphthalen-2-yl)isoquinolin-1(2H)-one CAS 656234-36-5

Purity 97%+In StockPharmaceutical Standards
CAS No.656234-36-5
Molecular FormulaC19H13NO2
Molecular Weight287.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Hydroxy-4-(naphthalen-2-yl)isoquinolin-1(2H)-one CAS 656234-36-5 chemical structure

Description

As a certified reference material (CRM), 5-Hydroxy-4-(naphthalen-2-yl)isoquinolin-1(2H)-one 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.

5-Hydroxy-4-(naphthalen-2-yl)isoquinolin-1(2H)-one (CAS 656234-36-5), molecular formula C19H13NO2 and molecular weight 287.31 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5-Hydroxy-4-(naphthalen-2-yl)isoquinolin-1(2H)-one (C19H13NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 287.31 g/mol, it falls into the medium-molecular-weight range. 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.

Physical & Chemical Properties

Molecular FormulaC19H13NO2
Molecular Weight287.31 g/mol
AppearancePale yellow to yellow crystalline powder
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
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Nitrogen Atoms1

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