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Acid Orange 5
(CAS RN:554-73-4 Product Number:A0576)


Acid Orange 5
Synonym Aniline Yellow
Synonym Diphenylamine Orange
Synonym Orange IV
Synonym Tropaeolin OO

General Information

Product Number A0576

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Purity/Analysis Method
Storage Temperature
M.F. / M.W. C18H14N3NaO3S=375.38
CAS RN 554-73-4
Related CAS RN
MDL Number MFCD00038130
Packaging and Container
  • Product Details
  • Safety & Regulations


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)


Colour Index 13080
Beilstein 16,332
Reaxys-RN 5211423
PubChem SID 87562161
Merck Index(14) 9776
EC Number 209-071-4

Transport Information

HS Number 2927000090


PubMed Literature

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