Photoresist Chemicals 3H-3a,6-Methanoazulen-3-one,1,2,4,5,6,7- hexahydro-7,7,8-trimethyl-,(-)- Cas：61474-32-6 Molecular Formula: 3H-3a,6-Methanoazulen-3-one,1,2,4,5,6,7- hexahydro-7,7,8-trimethyl-,(-)-