1-Oxaspiro(4.5)dec-3-en-2-one, 4-(hydroxyphenylmethyl)-3-methyl- 4-(Hydroxyphenylmethyl)-3-methyl-1-oxaspiro(4.5)dec-3-en-2-one 86560-15-8 BRN 5066304 Hydroxybenzyl-3 methyl-2 cyclohexane spiro-4,4-butene-2 olide-4 [French]