3-Cyclopropyl-1-methyl-1H-pyrazole-4-carboxylic acid CAS 137614-47-2

Purity 97%+In StockPharmaceutical Standards
CAS No.137614-47-2
Molecular FormulaC8H10N2O2
Molecular Weight166.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Cyclopropyl-1-methyl-1H-pyrazole-4-carboxylic acid CAS 137614-47-2 chemical structure

Description

The occurrence of 3-Cyclopropyl-1-methyl-1H-pyrazole-4-carboxylic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-Cyclopropyl-1-methyl-1H-pyrazole-4-carboxylic acid (CAS 137614-47-2), molecular formula C8H10N2O2 and molecular weight 166.18 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3-Cyclopropyl-1-methyl-1H-pyrazole-4-carboxylic acid (C8H10N2O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC8H10N2O2
Molecular Weight166.18 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-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
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Nitrogen Atoms2

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