CAS 5965-53-7 appears in our catalog under these names: Diethyl 2–oxopentanedioate, Diethyl 2-oxopentanedioate, Diethyl 2-oxopentanedioate 95%, Diethyl 2-oxopentanedioate, 95%, 95%, Diethyl 2-oxopentanedioate, 95%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 100mg, 1g, 250mg, 500mg, 1000mg, 5g.