5-(2H-1,3-Benzodioxol-5-yl)-1-(4-fluorobenzoyl)-1H-pyrazole CAS 956625-55-1

Purity 97%+In StockPharmaceutical Standards
CAS No.956625-55-1
Molecular FormulaC17H11FN2O3
Molecular Weight310.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(2H-1,3-Benzodioxol-5-yl)-1-(4-fluorobenzoyl)-1H-pyrazole CAS 956625-55-1 chemical structure

Description

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.

5-(2H-1,3-Benzodioxol-5-yl)-1-(4-fluorobenzoyl)-1H-pyrazole (CAS 956625-55-1) is a high-purity analytical reference standard with the molecular formula C17H11FN2O3 and a molecular weight of 310.28 g/mol.

Structurally, 5-(2H-1,3-Benzodioxol-5-yl)-1-(4-fluorobenzoyl)-1H-pyrazole (C17H11FN2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 310.28 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).

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 FormulaC17H11FN2O3
Molecular Weight310.28 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentF-containing
Nitrogen Atoms2

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