1H,3H,5H-Oxazolo(3,4-c)oxazole, poly(oxymethylene) deriv. 5-Hydroxypoly(methyleneoxy)methyl-1-aza-3,7-dioxabicyclo(3,3,0)octane 56709-13-8 Poly(oxymethylene), alpha-(1H,3H,5H-oxazolo(3,4-c)oxazol-3a(4H)-ylmethyl)-omega-hydroxy- Polymethoxy bicyclic oxazolidine