Chymostatin ([(S)-1-Carboxy-2-phenylethyl]-carbamoyl-α-[2-iminohexahydro-4(S)-pyrimidyl]-(S)-Gly-X-Phe-al) Source/Species: Microbial A mixture of type A, B, and C. X = Leu (Type A); Ile (Type B); Val (Type C). Ref: 1. Umezawa, H., et al., J. Antibiot., 23: 425 (1970). 2. Tatsuta, K., et al., J. Antibiot., 26: 625 (1973).

Storage temperature: –20 °C