L-​Glutamamide, N-​(2-​aminobenzoyl)​-​L-​alanyl-​L-​prolyl-​L-​α-​glutamyl-​L-​α-​glutamyl-​L-​isoleucyl-​L-​methionyl-​L-​arginyl-​L-​arginyl-​N1-​[2-​[(2,​4-​dinitrophenyl)​amino]​ethyl]​-