1-Ethyl-3,4,4,5-tetramethyl-4H-pyrazol-1-ium iodide CAS 20936-81-6

Purity 97%+In StockPharmaceutical Standards
CAS No.20936-81-6
Molecular FormulaC9H17N2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Ethyl-3,4,4,5-tetramethyl-4H-pyrazol-1-ium iodide CAS 20936-81-6 chemical structure

Description

Structurally, 1-Ethyl-3,4,4,5-tetramethyl-4H-pyrazol-1-ium iodide (C9H17N2I) contains a nitrile group, iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 280.15 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.

CATO supplies 1-Ethyl-3,4,4,5-tetramethyl-4H-pyrazol-1-ium iodide (CAS 20936-81-6), a certified reference material (molecular formula C9H17N2I, MW 280.15 g/mol) for analytical method development and quality control.

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 FormulaC9H17N2 I
Molecular Weight280.15 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1962
Halogen ContentI-containing
Nitrogen Atoms2

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