1-(2-Hydroxyethyl)-1H-pyrazole-4-carboxylic acid (hydrochloride) CAS 2137560-12-2

Purity 97%+In StockPharmaceutical Standards
CAS No.2137560-12-2
Molecular FormulaC6H8N2O3
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(2-Hydroxyethyl)-1H-pyrazole-4-carboxylic acid (hydrochloride) CAS 2137560-12-2 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-Hydroxyethyl)-1H-pyrazole-4-carboxylic acid (hydrochloride).

1-(2-Hydroxyethyl)-1H-pyrazole-4-carboxylic acid (hydrochloride) (CAS 2137560-12-2), molecular formula C6H8N2O3HCl and molecular weight 192.60 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1-(2-Hydroxyethyl)-1H-pyrazole-4-carboxylic acid (hydrochloride) (C6H8N2O3HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 192.60 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

CATO manufactures 1-(2-Hydroxyethyl)-1H-pyrazole-4-carboxylic acid (hydrochloride) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC6H8N2O3 HCl
Molecular Weight192.60 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1997
Halogen ContentCl-containing
Nitrogen Atoms2

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