Orange II ≥85 % (dye content), certified by the Biological Stain Commission, Sigma-Aldrich®

About this item

Synonyms: Tropaeolin OOO-2, acid orange 7, acid orange A, D and C Orange No. 4, 4-(2-Hydroxy-1-naphthylazo)benzenesulphonic acid sodium salt, Orange II sodium salt, p-(2-Hydroxy-1-naphthylazo)benzenesulphonic acid sodium salt, Gold orange

CAS Number:633-96-5

Formula:C₁₆H₁₁N₂NaO₄S

MDL Number:MFCD00011657

Molecular Weight:350.32 g/mol

:M-Clarity™ quality level = MQ200

Storage Temperature:Room Temperature

EINECS:211-199-0

Specifications

Environmentally Preferable:

Specifications

Specification Test Results

Appearance (Form):
Powder
Infrared spectrum:
Conforms to Structure
Wavelength, c = 0.01 g/L, H₂O:
480 - 486 nm
Extinction Coefficient:
≥17000
Wavelength:
307 - 313 nm
Biological Stain Commission, Commission Certified Number::
Pass
Dye Content:
≥85%
Carbon:
46.6 - 63.1%
Nitrogen:
6.8 - 9.2%

Specification Test Results

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