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4-Amino-1,1′-azobenzene-3,4′-disulphonic acid monosodium salt 95% (dye content), Sigma-Aldrich®
4-Amino-1,1′-azobenzene-3,4′-disulphonic acid monosodium salt 95% (dye content), Sigma-Aldrich®
Catalog # 250309-100G
CAS Number:  
4-Amino-1,1′-azobenzene-3,4′-disulphonic acid monosodium salt 95% (dye content), Sigma-Aldrich®
Catalog # 250309-100G
CAS Number:  

Specifications

  • Pack type:
    Glass bottle
  • Pk:
    100 g
  • Seq:
    3401
  • Environmentally Preferable:

Specifications

Specification Test Results

  • Appearance (Colour):
    Brown to Very Dark Brown and Purple to Very Dark Purple and Purple-Brown and Brown-Purple and Red-Brown and Very Dark Red-Brown
  • Appearance (Form):
    Powder
  • Infrared Spectrum:
    Conforms to Structure
  • Carbon:
    35.7 - 40.2%
  • Nitrogen:
    10.4 - 11.7%
  • TLC:
    Conforms
  • ICP Major Analysis:
    Confirmed
  • Absorption, λmax:
    489 nm

Specification Test Results

About this item

CAS Number:74543-21-8
 :
Formula:C₁₂H₁₀N₃NaO₆S₂
 :379.34 g/mol
EINECS:277-916-4
 :GHS07
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