Trisodium 2-(4-Sulphophenylazo)-1,8-dihydroxynaphthalene-3,6-disulphonate (SPADNS) ≥80%, Sigma-Aldrich®
: SPADNS, 2-(4-Sulphophenylazo)chromotropic acid trisodium salt, 4,5-Dihydroxy-3-(4-sulphophenylazo)-2,7-naphthalenedisulphonic acidtrisodium salt, 1,8-Dihydroxy-2-(4-sulphophenylazo)naphthalene-3,6-disulphonic acidtrisodium salt, Sulphanilic acid azochromotrope, 2-(p-sulphophenylazo)-1,8-Dihydroxy-3,6-Naphthalenedisulphonic acidtrisodium salt, Trisodium 1,8-Dihydroxy-2-(4-sulphophenylazo)naphthalene-3,6-disulphonate
:23647-14-5
:
:C₁₆H₁₂N₂O₁₁S₃
:MFCD00003952
:570.40 g/mol
:M-Clarity™ quality level = MQ200
:Room Temperature
- Environmentally Preferable:
- Appearance (Form):Powder
- Infrared spectrum:Conforms to Structure
- Carbon:26.0 - 35.0 %
- Nitrogen:3.6 - 5.9 %
- E1%:≥470
- pH:7.0
- Lambda Max:505 - 510 nm
- Purity (HPLC):≥80.0 %
- Solubility (Colour):Red
- Solubility (Turbidity)
50 mg plus 5 mL, H2O:Clear to Very Slightly Hazy
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