131274-05-0 5-Mpctggg Glycinamide, N-(((3-carboxybenzoyl)thio)acetyl)glycylglycyl-N-(2-(2-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)ethoxy)ethyl)- N-(5-Maleimido-3-oxapentyl)(2-(3-carboxybenzoyl)thio)acetylglycyl-glycyl-glycinamide