2(sup A)-D-Alloisoleucineactinomycin D 2612-14-8 Actinomycin C2 Actinomycin D, 2(sup A)-D-alloisoleucine- (9CI) Actinomycin D, 2A-D-alloisoleucine- (9CI) Actinomycin VI BRN 5387611 NSC 87221