... Export Co.,Ltd is one of the leading China riboflavin vb2 manufacturers and suppliers, and with productive factory, ... buy low price and high-quality vitamin b2, vb2 riboflavin, riboflavin-5-phosphate from us. BP2008/USP33/EP5 Particle ... Molecular Formula: C17H20N4O6 1.Description: An orange yellow crystalline powder. Riboflavin is the essential necessity fororganism in normal living as the ...