Eosin Y Certified (Acid Red 87)Color Index 45380, Purity 90+%50 gramFor Research and Laboratory Purposes (Microscope)Not for drug, human, animal, or food use Specification:Appearance (Form) PowderGrade – Biological Stain Commission (BSC) Certified. CAS No: 17372-87-1EC NoL: 241-409-6Formula: C20H6Br4 Na2O5Molecular weight: 691.85 g/mol STAINING PERFORMANCESatisfactory in:- Eosin Y vs Harris alum hematoxylin – Eosin Y vs Meyers alum hematoxylin – Nocht’s method on bone tissue sections- Constituent of Wright stain- EMB Spectroscopy: Peak 516 nm, ratio 1.41 @500/531 nm Density @ peak 0.621 au THIS ITEM WILL BE SHIPP IN ACCORDANCE WITH FEDEX/UPS/USPS CARRIERS, PER DOT 49CFR 172.101 REGULATIONS, PUBLISHED IN FEDERAL REGISTER 10742