2,5-Diiodoterephthalic acid CAS 20856-80-8

Purity 97%+In StockPharmaceutical Standards
CAS No.20856-80-8
Molecular FormulaC8H4I2O4
Molecular Weight417.92 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,5-Diiodoterephthalic acid CAS 20856-80-8 chemical structure

Description

High-purity 2,5-Diiodoterephthalic acid (CAS 20856-80-8) pharmaceutical standards reference standard. Molecular formula: C8H4I2O4. Molecular weight: 417.92 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.

Physical & Chemical Properties

Molecular FormulaC8H4I2O4
Molecular Weight417.92 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore in a cool place (≤25°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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Halogen ContentI-containing

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