CAS 6151-25-3 appears in our catalog under these names: Quercetin dihydrate, Quercetin dihydrate, min. 95 %, 25 g, plastic, Quercetin dihydrate, min. 98 %, 25 g, plastic, 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one Dihydrate (Quercetin Dihydrate), Quercetin Dihydrate, >95% (HPLC). Offered by: GLPBio, Roth, Mikromol, TRC, Thermo Scientific (Alfa Aesar). Available pack sizes: 25mg, 25g, 100mg, 1g, 10mM (in 1ml dmso), 100g, 500g, 250g.