Vitamin B2 (Riboflavin),China Bioco price supplier

vitamin B2 (98%)
Product specification
B2(C17H20N4O6) ≥98 % ，
Specific rotation －115°～－135° 
Loss on drying ≤1.5 %
Residue on ignition ≤0.3 %

Vitamin B2 (80%)
Product specification
B2(C17H20N4O6) ≥80 % ，
Size ≤300 um
Loss on drying ≤3.0 %
Residue on ignition ≤5.0 %