Tropaeolin OO, Indicator Grade, 100g

Tropaeolin OO, Indicator Grade, 100g
For Research & Development
Not for drug, human, animal, or food use

Certificate of Analysis:
Appearance (Color) Yellowish-orange
Appearance (Form) Powder
Absorptivity 1% 1cm at pH 1.2 at Lambda max. 527nm 968
Absorptivity 1% 1cm at pH 2.7 at Lambda max. 448nm 643
Infrared Spectrum Conforms to structure
Loss on Drying 4.6%  
Melting Point >300ºC
Suitability Suitable as a Andrade’s and pH indicator, a biological stain
Visual Transition Interval pH 1.2 [red] pH 2.7 [yellow]

CAS: 554-73-4

FORMULA: C₁₈H₁₄N₃NaO₃S