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Technical Data Sheet Congo Red

Compound Information
Product Name: Congo Red
CAS No.: 573-58-0
Molecular Formula: C32H22N6Na2O6S2
Molecular Weight: 696.66
Storage: Store at RT
Revision Date: 2026-04-15
Analytical Information
Tests Specifications
Appearance Red powder
Solubility H2O: soluble10mg/mL
Visual Transition Range pH 3.0 (blue) to pH 5.2 (red)
LOD ≤ 3%
Dye content ≥ 75%
Specification Reference ACS Reagent
¹H NMR Pass test
¹³C NMR Pass test
IR Pass test
Raman Pass test
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