(2R)-2-amino-3-[(2,6,7-trimethyl-3,5-dioxopyrazolo[1,2-a]pyrazol-1-yl)methylsulfanyl]propanoic acid (2R)-2-amino-3-[(2,6,7-trimethyl-3,5-dioxo-pyrazolo[1,2-a]pyrazol-1-yl)methylsulfanyl]propanoic acid (2R)-2-amino-3-[(2,6,7-trimethyl-3,5-dioxo-1-pyrazolo[1,2-a]pyrazolyl)methylthio]propanoic acid (2R)-2-amino-3-[(3,5-diketo-2,6,7-trimethyl-pyrazolo[2,1-a]pyrazol-1-yl)methylthio]propionic acid 87623-39-0 L-Cysteine, S-((2,5,6-trimethyl-1,7-dioxo-1H,7H-pyrazolo(1,2-a)pyrazol-3-yl)methyl)- S-Bimane-L-cysteine S-Bimanylcysteine