1-isopropyl-1H-pyrazol-3-ol CAS 21074-39-5

Purity 97%+In StockPharmaceutical Standards
CAS No.21074-39-5
Molecular FormulaC6H10N2O
Molecular Weight126.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-isopropyl-1H-pyrazol-3-ol CAS 21074-39-5 chemical structure

Description

1-isopropyl-1H-pyrazol-3-ol (CAS 21074-39-5) is a high-purity analytical reference standard with the molecular formula C6H10N2O and a molecular weight of 126.16 g/mol.

Owing to an amide group, a hydroxyl group, an ether linkage, 1-isopropyl-1H-pyrazol-3-ol is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 126.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC6H10N2O
Molecular Weight126.16 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1963
Nitrogen Atoms2

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