(E)-1,2-Bis(4-iodophenyl)diazene CAS 21650-53-3

Purity 97%+In StockPharmaceutical Standards
CAS No.21650-53-3
Molecular FormulaC12H8I2N2
Molecular Weight434.01 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-1,2-Bis(4-iodophenyl)diazene CAS 21650-53-3 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 (E)-1,2-Bis(4-iodophenyl)diazene.

CATO supplies (E)-1,2-Bis(4-iodophenyl)diazene (CAS 21650-53-3), a certified reference material (molecular formula C12H8I2N2, MW 434.01 g/mol) for analytical method development and quality control.

The molecular framework of (E)-1,2-Bis(4-iodophenyl)diazene (C12H8I2N2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, iodine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC12H8I2N2
Molecular Weight434.01 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Halogen ContentI-containing
Nitrogen Atoms2

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