L-Cysteine是一种口服有效的条件必需氨基酸，作为硫化氢、谷胱甘肽及牛磺酸等生物活性分子的前体，可通过胱硫醚β合酶/硫化氢通路促进神经干细胞增殖与分化；该化合物还能抑制饥饿素分泌、降低食欲，在啮齿类及人类中发挥厌食剂作用，并具有降血糖活性。
| 英文别名 (English Synonym) | L-Cysteine |
| 中文名称 (Chinese Name) | L-半胱氨酸 |
| 靶点 (Target) | Amino Acids and Derivatives |
| 通路 (Pathway) | Amino Acids & Building Blocks |
| CAS号 (CAS NO.) | 52-90-4 |
| 分子式 (Formula) | C3H7NO2S |
| 分子量 (Molecular Weight) | 121.2 |
粉末2~8℃避光干燥保存，有效期3年。
[1] Wang Z, Liu DX, Wang FW, Zhang Q, Du ZX, Zhan JM, Yuan QH, Ling EA, Hao AJ. L-Cysteine promotes the proliferation and differentiation of neural stem cells via the CBS/H₂S pathway. Neuroscience. 2013 May 1;237:106-17. doi: 10.1016/j.neuroscience.2012.12.057. Epub 2013 Jan 30. PMID: 23376738.
[2] McGavigan AK, O'Hara HC, Amin A, Kinsey-Jones J, Spreckley E, Alamshah A, Agahi A, Banks K, France R, Hyberg G, Wong C, Bewick GA, Gardiner JV, Lehmann A, Martin NM, Ghatei MA, Bloom SR, Murphy KG. L-cysteine suppresses ghrelin and reduces appetite in rodents and humans. Int J Obes (Lond). 2015 Mar;39(3):447-55. doi: 10.1038/ijo.2014.172. Epub 2014 Sep 15. PMID: 25219528; PMCID: PMC4276721.
