152786-45-3 156762-52-6 Bis-(diphenylcholesteryloxysiloxy)germanium phthalocyanine CGP 55398 Cgp-55398 Germanium(IV) phthalocyanine Germanium, bis((((3beta)-cholest-4-en-3-yl)oxy)diphenylsilanolato)(29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32)-, (OC-6-12)-