1,3-Dioxa-2-thia-4-silacycloheptane, 4-chloro-4-methyl-, 2,2-dioxide 1-Methyl-1-chloro-6,6-dioxo-1-sila-5,7-dioxa-6-thiacycloheptane 4-Chloro-4-methyl-1,3-dioxa-2-thia-4-silacycloheptane 2,2-dioxide 68123-28-4 EINECS 268-545-9