The molecule is an L-arginine ester that is methyl L-argininate in which one of the hydrogens attached to the alpha-nitrogen is substituted by a tosyl group. It is a L-arginine ester, a sulfonamide, a methyl ester and a member of guanidines.
methyl (2S)-5-(diaminomethylideneamino)-2-[(4-methylphenyl)sulfonylamino]pentanoate