55804-66-5 WM5MO60RUO Coumarin 504 1H,5H,11H-(1)Benzopyrano(6,7,8-ij)quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester Ethyl 2,3,6,7-tetrahydro-11-oxo-1H,5H,11H-(1)benzopyrano(6,7,8-ij)quinolizine-10-carboxylate CCRIS 4963 EINECS 259-825-1 NSC 338967 UNII-WM5MO60RUO CAS 55804-66-5

Purity 97%+In StockPharmaceutical Standards
CAS No.55804-66-5
Molecular FormulaC18H25NO4
Molecular Weight319.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

55804-66-5 WM5MO60RUO Coumarin 504 1H,5H,11H-(1)Benzopyrano(6,7,8-ij)quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester Ethyl 2,3,6,7-tetrahydro-11-oxo-1H,5H,11H-(1)benzopyrano(6,7,8-ij)quinolizine-10-carboxylate CCRIS 4963 EINECS 259-825-1 NSC 338967 UNII-WM5MO60RUO CAS 55804-66-5 chemical structure

Description

The occurrence of 55804-66-5 WM5MO60RUO Coumarin 504 1H,5H,11H-(1)Benzopyrano(6,7,8-ij)quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester Ethyl 2,3,6,7-tetrahydro-11-oxo-1H,5H,11H-(1)benzopyrano(6,7,8-ij)quinolizine-10-carboxylate CCRIS 4963 EINECS 259-825-1 NSC 338967 UNII-WM5MO60RUO is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 55804-66-5 WM5MO60RUO Coumarin 504 1H,5H,11H-(1)Benzopyrano(6,7,8-ij)quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester Ethyl 2,3,6,7-tetrahydro-11-oxo-1H,5H,11H-(1)benzopyrano(6,7,8-ij)quinolizine-10-carboxylate CCRIS 4963 EINECS 259-825-1 NSC 338967 UNII-WM5MO60RUO (CAS 55804-66-5), a certified reference material (molecular formula C18H25NO4, MW 319.40 g/mol) for analytical method development and quality control.

55804-66-5 WM5MO60RUO Coumarin 504 1H,5H,11H-(1)Benzopyrano(6,7,8-ij)quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester Ethyl 2,3,6,7-tetrahydro-11-oxo-1H,5H,11H-(1)benzopyrano(6,7,8-ij)quinolizine-10-carboxylate CCRIS 4963 EINECS 259-825-1 NSC 338967 UNII-WM5MO60RUO (C18H25NO4) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 55804-66-5 WM5MO60RUO Coumarin 504 1H,5H,11H-(1)Benzopyrano(6,7,8-ij)quinolizine-10-carboxylic acid, 2,3,6,7-tetrahydro-11-oxo-, ethyl ester Ethyl 2,3,6,7-tetrahydro-11-oxo-1H,5H,11H-(1)benzopyrano(6,7,8-ij)quinolizine-10-carboxylate CCRIS 4963 EINECS 259-825-1 NSC 338967 UNII-WM5MO60RUO 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 FormulaC18H25NO4
Molecular Weight319.40 g/mol
AppearanceOff-white to pale 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Nitrogen Atoms1

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