2,5-diiodopyridine CAS 116195-81-4

Purity 97%+In StockPharmaceutical Standards
CAS No.116195-81-4
Molecular FormulaC5H9I2N
Molecular Weight336.94 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,5-diiodopyridine CAS 116195-81-4 chemical structure

Description

The occurrence of 2,5-diiodopyridine is closely related to iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2,5-diiodopyridine (CAS 116195-81-4) is a high-purity analytical reference standard with the molecular formula C5H9I2N and a molecular weight of 336.94 g/mol.

Owing to iodine substitution, 2,5-diiodopyridine is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 336.94 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 FormulaC5H9I2N
Molecular Weight336.94 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1990
Halogen ContentI-containing
Nitrogen Atoms1

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