112172-45-9 120896-45-9 2,4,8,10-Tetraoxaspiro(5.5)undecane-3,9-dipropanamine 21587-74-6 3,3'-(2,4,8,10-Tetraoxaspiro(5.5)undecan-3,9-ylene)bis(propylamine) 3,9-Bis(3-aminopropyl)-2,4,8,10-tetraoxaspiro(5,5)undecane 39384-40-2 39387-07-0 52232-79-8 52622-96-5 67995-37-3 88029-87-2 94196-51-7 AI3-61552 EINECS 244-461-8