CAS 2046-21-1 appears in our catalog under these names: Methyl 6–oxoheptanoate, Methyl 6-oxoheptanoate 98%, Heptanoic acid, 6-oxo-, methyl ester, 98%, 98%, Methyl 6-oxoheptanoate, 98%. Offered by: GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 250mg, 25g, 100mg, 10g.