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CAS RN: 554-73-4 | Product Number: A0576

Acid Orange 5

  • Aniline Yellow
  • Diphenylamine Orange
  • Orange IV
  • Tropaeolin OO
1   ≥20 
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Product Number A0576
Molecular Formula / Molecular Weight C__1__8H__1__4N__3NaO__3S = 375.38  
Physical State (20 deg.C) Solid
CAS RN 554-73-4
Reaxys Registry Number 5211423
PubChem Substance ID 87562161
Merck Index (14) 9776
Colour Index 13080
MDL Number


Appearance Light yellow to Amber to Dark green powder to crystal
Lambda max. 446.0 to 450.0 nm(pH3.0)
Absorbance min. 0.270(5 mg/L, pH 3.0, 446.0 to 450.0 nm)
Transition interval(pH) (purplish red)1.2 to 3.0(yellow)
Properties (reference)
Maximum Absorption Wavelength 448(pH3.0) nm
Related Laws:
EC Number 209-071-4
Transport Information:
HS Number 2927000090
PubMed Literature

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