Congo Red, 75+% (Dye Content), 100g

Congo Red, 75+% (Dye Content), 100g
For Research & Development
Not for drug, human, animal, or food use

Specifications:
Appearance (Color) Dark red to reddish-brown
Appearance (Form) Powder
Dye Content (by Spectrophotometry) 75+%
Spectroscopy 497-500 nm
Loss on Drying (110 Deg. C/1hr) <5.0%
Solubility Soluble in water, moderately soluble in methyl cellosolve and ethylene glycol and very slightly soluble in ethanol
Clarity of Solution To pass test
Visual Transition Interval From pH 3.0 (blue) to pH 5.2 (red)

CAS: 573-58-0

FORMULA: C₃₂H₂₂N₆Na₂O₆S₂