CAS 155887-96-0 appears in our catalog under these names: m–PEG6–Tos, m-PEG6-Tos 98%, 2,5,8,11,14,17-Hexaoxanonadecan-19-yl 4-methylbenzenesulfonate, 98%, 98%, m-PEG6-Tos, 99.59%, m-PEG6-Tos, 97%. Offered by: GLPBio, Ambeed, Chemat, MedChemExpress, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 1 g, 250 mg, 100 mg.