CAS 1951424-88-6 appears in our catalog under these names: Biotin-TEG-O-NH2*HCl, N-(2-(2-(2-(2-(Aminooxy)ethoxy)ethoxy)ethoxy)ethyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide hydrochloride 98%. Offered by: Iris Biotech, Ambeed. Available pack sizes: 50mg, 1g, 100mg, 250mg.