CAS 405518-55-0 appears in our catalog under these names: m-PEG9-CH2COOH/ 99.76% (existing batch purity), m–PEG9–CH2COOH, mPEG9-CH2COOH, m-PEG9-CH2COOH 98%, 3,6,9,12,15,18,21,24,27,30-Decaoxahentriacontanoic acid, 98%, 98%. Offered by: TargetMol, GLPBio, Biosynth, Ambeed, Chemat. Available pack sizes: 10mg, 25mg, 50mg, 100mg, 500mg, 1g, 250mg, 1000mg.