CAS 1286754-10-6 appears in our catalog under these names: 14–(2,5–Dioxo–2,5–dihydro–1H–pyrrol–1–yl)–3,6,9,12–tetraoxatetradecanoic acid, Mal-PEG4-CH2COOH, Mal-PEG4-AcCOOH 95%. Offered by: GLPBio, Biosynth, Ambeed. Available pack sizes: 250mg, 500mg, 1000mg, 5000mg, 100mg, 1g.