1-(Naphthalen-1-ylmethyl)-4-nitro-1h-pyrazole CAS 400877-61-4

Purity 97%+In StockPharmaceutical Standards
CAS No.400877-61-4
Molecular FormulaC14H11N3O2
Molecular Weight253.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(Naphthalen-1-ylmethyl)-4-nitro-1h-pyrazole CAS 400877-61-4 chemical structure

Description

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.

1-(Naphthalen-1-ylmethyl)-4-nitro-1h-pyrazole (CAS 400877-61-4), molecular formula C14H11N3O2 and molecular weight 253.26 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C14H11N3O2, 1-(Naphthalen-1-ylmethyl)-4-nitro-1h-pyrazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 253.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

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 FormulaC14H11N3O2
Molecular Weight253.26 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.)2025
Nitrogen Atoms3

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