http://www.alibaba.com/rss/product_search/vitamin b2.rss Marketplace of export & import, offers company directory, catalog, trade leads to importer, exporter, manufacturer, wholesaler. en-us alibaba http://www.alibaba.com/product-gs/276844499/Vitamin_B2_Feed_Grade_.html Riboflavin(Vitamin B2) <br>Feed Grade: 80% <br>We also supply: <br>Vitamin B2 USP and other feed vitamins. http://www.alibaba.com/product-gs/277045705/D_Ribose.html D-ribose is the material used in the synthesis of Vitamin B2 (Riboflavin), Tetra-O-Acetyl-Ribose and nucleoside etc... http://www.alibaba.com/product-gs/276843935/Vitamin_B2_USP_BP_.html Riboflavin (Vitamin B2) <br>BP/USP: 98% <br>We also supply: <br>Vitamin B2 Feed grade and other feed vitamins.