Ethyl 2-(2-oxo-5a,11b-dihydro-2H,5H-chromeno[4',3':4,5]thiopyrano[2,3-d]thiazol-3(6H)-yl)acetate CAS 501112-38-5

Purity 97%+In StockPharmaceutical Standards
CAS No.501112-38-5
Molecular FormulaC17H17NO4S2
Molecular Weight363.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-(2-oxo-5a,11b-dihydro-2H,5H-chromeno[4',3':4,5]thiopyrano[2,3-d]thiazol-3(6H)-yl)acetate CAS 501112-38-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 363.45 g/mol gives Ethyl 2-(2-oxo-5a,11b-dihydro-2H,5H-chromeno[4',3':4,5]thiopyrano[2,3-d]thiazol-3(6H)-yl)acetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ethyl 2-(2-oxo-5a,11b-dihydro-2H,5H-chromeno[4',3':4,5]thiopyrano[2,3-d]thiazol-3(6H)-yl)acetate (CAS 501112-38-5), a certified reference material (molecular formula C17H17NO4S2, MW 363.45 g/mol) for analytical method development and quality control.

Structurally, Ethyl 2-(2-oxo-5a,11b-dihydro-2H,5H-chromeno[4',3':4,5]thiopyrano[2,3-d]thiazol-3(6H)-yl)acetate (C17H17NO4S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 363.45 g/mol, it falls into the moderately-high-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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC17H17NO4S2
Molecular Weight363.45 g/mol
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984
Nitrogen Atoms1
Sulfur Atoms2

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