3-Amino-5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl)-2-hydroxybenzoic acid CAS 857024-60-3

Purity 97%+In StockPharmaceutical Standards
CAS No.857024-60-3
Molecular FormulaC22H15NO9
Molecular Weight437.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Amino-5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl)-2-hydroxybenzoic acid CAS 857024-60-3 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Amino-5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl)-2-hydroxybenzoic acid.

CATO supplies 3-Amino-5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl)-2-hydroxybenzoic acid (CAS 857024-60-3), a certified reference material (molecular formula C22H15NO9, MW 437.36 g/mol) for analytical method development and quality control.

Structurally, 3-Amino-5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl)-2-hydroxybenzoic acid (C22H15NO9) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 437.36 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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-Amino-5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl)-2-hydroxybenzoic 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 FormulaC22H15NO9
Molecular Weight437.36 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, 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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms1

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