α-Me-Cys-OH•HCl Product Catalog # Size Price (USD) Quantity α-Me-Cys-OH•HCl180308-1G1 g$726.00 - α-Me-Cys-OH•HCl-1g quantity + α-Me-Cys-OH•HCl180308-5G5 g$2,250.00 - α-Me-Cys-OH•HCl-5g quantity + Add to cart Description Synonym: (R)-L-alpha-Methylcysteine•HCl CAS #: 148766-37-4 Molecular Formula: C4H9NO2S•HCl Molecular Weight: 171.6