L-Cysteine, 250 g

L-Cysteine, 250 g — STEMCELL Technologies. L-Cysteine is the naturally occurring amino acid with a free thiol, used as a media supplement, reagent in biochemical syntheses, and reducing agent in laboratory protocols. Supplied as a solid. Storage and handling: keep tightly closed in a cool, dry place; refrigerate or store at -20°C for long-term storage; prepare fresh solutions as the thiol is susceptible to oxidation. For research use only; consult SDS for handling instructions.