3-(4-Methoxyphenyl)-2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acid CAS 442858-64-2

Purity 97%+In StockPharmaceutical Standards
CAS No.442858-64-2
Molecular FormulaC18H17NO4
Molecular Weight311.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(4-Methoxyphenyl)-2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acid CAS 442858-64-2 chemical structure

Description

3-(4-Methoxyphenyl)-2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acid (C18H17NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

3-(4-Methoxyphenyl)-2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acid (CAS 442858-64-2), molecular formula C18H17NO4 and molecular weight 311.33 g/mol, is a CATO reference standard with documented purity and traceability.

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), 3-(4-Methoxyphenyl)-2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acid 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 FormulaC18H17NO4
Molecular Weight311.33 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 methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1

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