CAS 2134235-86-0 appears in our catalog under these names: Acid-PEG7-t-butyl ester 98%, 2,2-Dimethyl-4-oxo-3,7,10,13,16,19,22,25-octaoxaoctacosan-28-oic acid, 99%, 99%, Acid-PEG7-t-butyl ester. Offered by: Ambeed, Chemat, MedChemExpress. Available pack sizes: 100mg, 250mg, 1g, 5g, 100 mg, 50 mg, 25 mg, 1 g.