1-(2,4-Dimethylphenyl)-1h,4h,5h,6h-cyclopenta[c]pyrazole-3-carboxylic acid CAS 1152535-85-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1152535-85-7
Molecular FormulaC15H16N2O2
Molecular Weight256.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(2,4-Dimethylphenyl)-1h,4h,5h,6h-cyclopenta[c]pyrazole-3-carboxylic acid CAS 1152535-85-7 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(2,4-Dimethylphenyl)-1h,4h,5h,6h-cyclopenta[c]pyrazole-3-carboxylic acid.

1-(2,4-Dimethylphenyl)-1h,4h,5h,6h-cyclopenta[c]pyrazole-3-carboxylic acid (CAS 1152535-85-7) is a high-purity analytical reference standard with the molecular formula C15H16N2O2 and a molecular weight of 256.30 g/mol.

1-(2,4-Dimethylphenyl)-1h,4h,5h,6h-cyclopenta[c]pyrazole-3-carboxylic acid (C15H16N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

As a certified reference material (CRM), 1-(2,4-Dimethylphenyl)-1h,4h,5h,6h-cyclopenta[c]pyrazole-3-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC15H16N2O2
Molecular Weight256.30 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms2

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