5-ethyl-1-phenyl-1H-pyrazol-4-amine CAS 1521280-31-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1521280-31-8
Molecular FormulaC11H13N3
Molecular Weight187.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-ethyl-1-phenyl-1H-pyrazol-4-amine CAS 1521280-31-8 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 5-ethyl-1-phenyl-1H-pyrazol-4-amine.

CATO supplies 5-ethyl-1-phenyl-1H-pyrazol-4-amine (CAS 1521280-31-8), a certified reference material (molecular formula C11H13N3, MW 187.24 g/mol) for analytical method development and quality control.

Structurally, 5-ethyl-1-phenyl-1H-pyrazol-4-amine (C11H13N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 187.24 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC11H13N3
Molecular Weight187.24 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Nitrogen Atoms3

Recommended Standards

Why CATO?