Ethyl 5-(2-methoxy-2-oxoethyl)-4-oxo-4h,5h-[1,2]oxazolo[5,4-d]pyrimidine-3-carboxylate CAS 1127366-89-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1127366-89-5
Molecular FormulaC11H11N3O6
Molecular Weight281.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5-(2-methoxy-2-oxoethyl)-4-oxo-4h,5h-[1,2]oxazolo[5,4-d]pyrimidine-3-carboxylate CAS 1127366-89-5 chemical structure

Description

CATO manufactures Ethyl 5-(2-methoxy-2-oxoethyl)-4-oxo-4h,5h-[1,2]oxazolo[5,4-d]pyrimidine-3-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

CATO supplies Ethyl 5-(2-methoxy-2-oxoethyl)-4-oxo-4h,5h-[1,2]oxazolo[5,4-d]pyrimidine-3-carboxylate (CAS 1127366-89-5), a certified reference material (molecular formula C11H11N3O6, MW 281.22 g/mol) for analytical method development and quality control.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ethyl 5-(2-methoxy-2-oxoethyl)-4-oxo-4h,5h-[1,2]oxazolo[5,4-d]pyrimidine-3-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 281.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC11H11N3O6
Molecular Weight281.22 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, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms3

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