Congo red indicator grade
Supplier: Thermo Scientific
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Danger
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Synonyms:
Disodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis(4-aminonaphthalene-1-sulphonate), Sodium 3,3'-([1,1'-biphenyl]-4,4'-diylbis(diazene-2,1-diyl))bis(4-aminonaphthalene-1-sulphonate), CI 22120, Direct Red 28
110501000
110505000
ACRO110501000EA
139
GBP
ACRO110501000
ACRO110505000
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: 12,02562 |
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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