2,7-Diaminosuberoyl-A1-N(alpha)-B29-N(epsilon)-insulin 74504-12-4 A2sb Insulin Insulin, 2,7-diaminosuberoyl, N(alpha)(A1), N(epsilon)(B29)- Insulin, NA,29B-(2,7-diamino-1,8-dioxo-1,8-octanediyl)-