Toluidine Blue O, 85% (Dye Content), Certified, 25g

Toluidine Blue O, 85% (Dye Content), Certified, 25g
For Research & Development
Not for drug, human, animal, or food use

Certificate of Analysis:
Appearance (Color) Dark green
Appearance (Form) Powder
Assay (by Elemental Analysis) [C] 58.9% [H] 5.27% [N] 13.7% 
Assay (by Dye Content, Spectrophotometry) 85.0% 
Absorption Maxima (in Water) 629nm 
Absorptivity (0.005 g/l in water, at maximum) 1344  
Loss on Drying (at 110°C) 6.41% 
Solubility 3.82g/100ml in Water 
Suitable certified for use as a metachromatic stain for mast cells and cartilage using the Churukian-Schenk method and the method of Nocht on paraffin sections

CAS: 92-31-9

FORMULA: C₁₅H₁₆N₃SCl