Try searching for...
SCFBio, IIT Delhi
Formula: C9H17NO3S | Mol. Weight: 219.30 g/mol
IUPAC: (2R)-2-azaniumyl-3-(2-methyl-4-oxopentan-2-yl)sulfanylpropanoate
CC(=O)CC(C)(C)SCC(C(=O)[O-])[NH3+]