CAS 43083-12-1 appears in our catalog under these names: 1,1,1-Trimethoxybutane, Trimethyl orthobutyrate, Trimethyl Orthobutyrate, >96.0%(GC), Trimethylorthobutyrate 98% GC, TRIMETHYL ORTHOBUTYRATE, 97%. Offered by: TRC, GLPBio, TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 100g, 25g, 5g, 500g, 5ml, 25ml.