1,3-Dioxolane-4-methanol, 2,2,5-trimethyl-, 4-methylbenzenesulfonate, cis-(+-)- (9CI) 1,3-Dioxolane-5-methanol, 2,2,4-trimethyl-, p-toluenesulfonate (ester), DL-erythro- 2,2,4-Trimethyl-5-(p-tolylsulfonyloxy)methyl-DL-erythro-1,3-dioxolane 73987-14-1 NSC 75723