There are many derivatives of these amino acids,but N-acetyl-L-cysteine,gluthathione and adenosylmethionine are very useful.

• 含硫氨基酸衍生物产品众多，其中最具代表性的是N-乙酰-L-半胱氨酸，谷胱甘肽，腺苷蛋氨酸。