CAS 2183447-27-8 appears in our catalog under these names: Biotin-PEG8-amine/ 99.59% (existing batch purity), Biotin–PEG8–amine, Biotin-PEG8-amine 97%, N-(26-Amino-3,6,9,12,15,18,21,24-octaoxahexacosyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide, 97%, 97%, Biotin-PEG8-amine, 99.84%. Offered by: TargetMol, GLPBio, Ambeed, Chemat, MedChemExpress. Available pack sizes: 10mg, 25mg, 50mg, 100mg, 250mg, 1g, 500mg, 50 mg.