82537-96-0 B30-Des-ala-insulin disulfide B30-Desalanine-insulin disulfide B30-Disulfide-desalanine insulin Insulin, 30-de-L-alanine-, cyclic (7-19)-disulfide Insulin, disulfide-de-alanine(B30)- Insulin, disulfide-des-ala(B30)- Insulin, disulfide-desalanine(B30)-