The molecule is a sulfoximide that is the sulfoximine derivative of an analogue of DL-methionine in which the S-methyl group is replaced by S-butyl. It has a role as an EC 6.3.2.2 (glutamate--cysteine ligase) inhibitor. It is a sulfoximide, a non-proteinogenic alpha-amino acid and a member of homocysteines.
2-amino-4-(butylsulfonimidoyl)butanoic acid