Tropaeolin OO, Indicator Grade, 25g 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]