4-Chloro-2-(1H-pyrazol-1-yl)benzaldehyde CAS 1446818-92-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1446818-92-3
Molecular FormulaC10H7ClN2O
Molecular Weight206.63 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-2-(1H-pyrazol-1-yl)benzaldehyde CAS 1446818-92-3 chemical structure

Description

The occurrence of 4-Chloro-2-(1H-pyrazol-1-yl)benzaldehyde is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Chloro-2-(1H-pyrazol-1-yl)benzaldehyde (CAS 1446818-92-3), molecular formula C10H7ClN2O and molecular weight 206.63 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C10H7ClN2O, 4-Chloro-2-(1H-pyrazol-1-yl)benzaldehyde contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 206.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

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 FormulaC10H7ClN2O
Molecular Weight206.63 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Halogen ContentCl-containing
Nitrogen Atoms2

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