3-Iodo-5-methoxy-4-(2-propynyloxy)benzaldehyde CAS 279680-91-0

Purity 97%+In StockPharmaceutical Standards
CAS No.279680-91-0
Molecular FormulaC11H9IO3
Molecular Weight316.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Iodo-5-methoxy-4-(2-propynyloxy)benzaldehyde CAS 279680-91-0 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 3-Iodo-5-methoxy-4-(2-propynyloxy)benzaldehyde.

CATO supplies 3-Iodo-5-methoxy-4-(2-propynyloxy)benzaldehyde (CAS 279680-91-0), a certified reference material (molecular formula C11H9IO3, MW 316.09 g/mol) for analytical method development and quality control.

Based on its molecular formula C11H9IO3, 3-Iodo-5-methoxy-4-(2-propynyloxy)benzaldehyde contains a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 316.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC11H9IO3
Molecular Weight316.09 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentI-containing

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