Dimethyl 5-oxo-5,6-dihydropyrazolo[1,5-c]quinazoline-1,2-dicarboxylate CAS 41940-24-3

Purity 97%+In StockPharmaceutical Standards
CAS No.41940-24-3
Molecular FormulaC14H11N3O5
Molecular Weight301.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Dimethyl 5-oxo-5,6-dihydropyrazolo[1,5-c]quinazoline-1,2-dicarboxylate CAS 41940-24-3 chemical structure

Description

Structurally, Dimethyl 5-oxo-5,6-dihydropyrazolo[1,5-c]quinazoline-1,2-dicarboxylate (C14H11N3O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 301.25 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Dimethyl 5-oxo-5,6-dihydropyrazolo[1,5-c]quinazoline-1,2-dicarboxylate (CAS 41940-24-3) is a high-purity analytical reference standard with the molecular formula C14H11N3O5 and a molecular weight of 301.25 g/mol.

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.

CATO manufactures Dimethyl 5-oxo-5,6-dihydropyrazolo[1,5-c]quinazoline-1,2-dicarboxylate 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.

Physical & Chemical Properties

Molecular FormulaC14H11N3O5
Molecular Weight301.25 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968
Nitrogen Atoms3

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