Xian Rainbow Biotech Co. Ltd. is based in China and lists Rutin Powder on Global Trade Plaza. The product is described as a yellow-green fine powder derived from Sophora Japonica L. flower buds, with a molecular formula of C27H30O16 and molecular weight of 610.5175. It has a CAS number of 153-18-4 and EINECS number 205-814-1. The specification includes a rutin content of 95%, quercetin of 5%, and limits for heavy metals and microbiological contaminants. Buyers can send an enquiry through Global Trade Plaza.