3-Iodo-1H-pyrazole CAS 4522-35-4

Purity 97%+In StockPharmaceutical Standards
CAS No.4522-35-4
Molecular FormulaC3H3IN2
Molecular Weight193.97 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Iodo-1H-pyrazole CAS 4522-35-4 chemical structure

Description

3-Iodo-1H-pyrazole (CAS 4522-35-4) is a high-purity analytical reference standard with the molecular formula C3H3IN2 and a molecular weight of 193.97 g/mol.

3-Iodo-1H-pyrazole (C3H3IN2) contains a nitrile group, iodine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

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.

As a certified reference material (CRM), 3-Iodo-1H-pyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC3H3IN2
Molecular Weight193.97 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 tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1958
Halogen ContentI-containing
Nitrogen Atoms2

Related Iodo Standards

Recommended Standards

Why CATO?