2,4-Naps-acth 2-Nitro-4-azidophenylsulfenyl-acth 2-Nitro-4-azidophenylsulfenyl-corticotropin 73905-68-7 ACTH, 2-nitro-4-azidophenylsulfenyl- alpha1-39-Corticotropin, 9-(2-((4-azido-2-nitrophenyl)thio)-L-tryptophan)-