(3-[3-Cholamidopropyl)dimethylammonio]-2-hydroxy-1-propanesulfonate, 99+%

N-[6-(Biotinamido)hexyl]-3-(2-pyridyldithio)propionamide

Tris( 2-carboxyethyl )phosphine hydrochloride

BCA Protein Assay Kit

beta Glucuronidase solution, 100,000 units / ml from abalone

(D,L)-1,4-Dithiothreitol, 99.5+%, Molecular Biology Grade

Dimethylethylammonium-1-propane sulfonate

N-Succinimidyl-S-acetylthioacetate