CAS 874208-91-0 appears in our catalog under these names: m–PEG6–CH2CH2COOH, m-PEG6-CH2CH2COOH 98%, 2,5,8,11,14,17,20-Heptaoxatricosan-23-oic acid, 98%, 98%, m-PEG6-CH2CH2COOH, 99.61%, 4,7,10,13,16,19,22-HEPTAOXATRICOSANOIC ACID, 98%. Offered by: GLPBio, Ambeed, Chemat, MedChemExpress, Fluorochem. Available pack sizes: 100mg, 1g, 250mg, 5g, 10g, 25g, 250 mg, 1 g.