CAS 66323-03-3 appears in our catalog under these names: Dimethyl 4,5–dihydroxyphthalate, Dimethyl 4,5-dihydroxyphthalate 97%, Dimethyl 4,5-dihydroxyphthalate, 97%, 97%, DIMETHYL 4,5-DIHYDROXYPHTHALATE, 97%. Offered by: GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 250mg, 50mg, 100mg, 1g, 5g, 10g.