5,7-Bis(difluoromethyl)-3-nitropyrazolo[1,5-a]pyrimidine-2-carboxylic acid CAS 937601-43-9

Purity 97%+In StockPharmaceutical Standards
CAS No.937601-43-9
Molecular FormulaC9H4F4N4O4
Molecular Weight308.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5,7-Bis(difluoromethyl)-3-nitropyrazolo[1,5-a]pyrimidine-2-carboxylic acid CAS 937601-43-9 chemical structure

Description

5,7-Bis(difluoromethyl)-3-nitropyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 937601-43-9) is a high-purity analytical reference standard with the molecular formula C9H4F4N4O4 and a molecular weight of 308.15 g/mol.

Based on its molecular formula C9H4F4N4O4, 5,7-Bis(difluoromethyl)-3-nitropyrazolo[1,5-a]pyrimidine-2-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 308.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

CATO manufactures 5,7-Bis(difluoromethyl)-3-nitropyrazolo[1,5-a]pyrimidine-2-carboxylic acid 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 FormulaC9H4F4N4O4
Molecular Weight308.15 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentF-containing
Nitrogen Atoms4

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