Photoresist Chemicals Naphth[2,3-b]oxiren-2(1aH)-one,octahydro-4-hydroxy-7-(hydroxymethyl)-3,3,6a,7a-tetramethyl-,(1aR,2aR,4S,6aR,7S,7aR)- Cas：74636-05-8 Molecular Formula：C15H24 O4