38965-71-8 8-Hydroxy-6-nitrophenanthro(3,4-d)-1,3-dioxolo-5-carboxylic acid Aristolochic acid ia BRN 4563308 CCRIS 2578 Phenanthro(3,4-d)-1,3-dioxole-5-carboxylic acid, 8-hydroxy-6-nitro-