5-tert-Butyl 2-ethyl 6-methyl-4-oxopyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate CAS 1820647-45-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1820647-45-7
Molecular FormulaC15H19N3O5
Molecular Weight321.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-tert-Butyl 2-ethyl 6-methyl-4-oxopyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate CAS 1820647-45-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 321.33 g/mol gives 5-tert-Butyl 2-ethyl 6-methyl-4-oxopyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 5-tert-Butyl 2-ethyl 6-methyl-4-oxopyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate (CAS 1820647-45-7), a certified reference material (molecular formula C15H19N3O5, MW 321.33 g/mol) for analytical method development and quality control.

Structurally, 5-tert-Butyl 2-ethyl 6-methyl-4-oxopyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate (C15H19N3O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 321.33 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.

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

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 FormulaC15H19N3O5
Molecular Weight321.33 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 DMSO, DMF, methanol
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.)1995
Nitrogen Atoms3

Recommended Standards

Why CATO?