Congo red indicator grade

Supplier: Thermo Scientific Chemicals
Danger

Synonyms: CI 22120

11050-1000 11050-5000
TS11050-1000EA 63 USD
TS11050-1000 TS11050-5000
Congo red indicator grade
Congo red
Formula: C₃₂H₂₂N₆Na₂O₆S₂
MW: 696.67 g/mol
Melting Pt: >360 °C
Storage Temperature: Ambient
MDL Number: MFCD00004028
CAS Number: 573-58-0
EINECS: 209-358-4
Merck Index: 1202562

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Specification Test Results

Appearance Dark red to red-brown Powder
Infrared spectrum Conforms
UV spectrum Complies
Solubility (0.1 % in water) Clear
Visual transition interval from pH 3.0 (violet) to pH 5.2 (red-orange)

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