CAS 92450-99-2 appears in our catalog under these names: MeO-PEG-COOH (2 kDa), O–(2–(3–Succinylamino)ethyl)–O′–methyl–polyethylene glycol, MeO-PEG-COOH (10 kDa), MeO-PEG-COOH (20 kDa), MeO-PEG-COOH (5 kDa). Offered by: Iris Biotech, GLPBio. Available pack sizes: 1g, 5g.