3,5-Diiodo-4-methoxy-1-methylpyridin-2(1H)-one CAS 920490-66-0

Purity 97%+In StockPharmaceutical Standards
CAS No.920490-66-0
Molecular FormulaC7H7I2NO2
Molecular Weight390.94 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,5-Diiodo-4-methoxy-1-methylpyridin-2(1H)-one CAS 920490-66-0 chemical structure

Description

3,5-Diiodo-4-methoxy-1-methylpyridin-2(1H)-one (CAS 920490-66-0) is a high-purity analytical reference standard with the molecular formula C7H7I2NO2 and a molecular weight of 390.94 g/mol.

The molecular framework of 3,5-Diiodo-4-methoxy-1-methylpyridin-2(1H)-one (C7H7I2NO2) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

CATO manufactures 3,5-Diiodo-4-methoxy-1-methylpyridin-2(1H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC7H7I2NO2
Molecular Weight390.94 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentI-containing
Nitrogen Atoms1

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