1-Thia-3-cyclopentene 1,1-dioxide 2,5-DIHYDROTHIOPHENE 1,1-DIOXIDE 2,5-Dihydrothiophene dioxide 2,5-Dihydrothiophene sulfone 3-Sulfolene 5-17-01-00177 (Beilstein Handbook Reference) 77-79-2 AI3-23457 BRN 0107004 Butadiene sulfone CCRIS 569 EINECS 201-059-7 HSDB 2903 NCI-C04557 NSC 48532 Thiophene, 2,5-dihydro-, 1,1-dioxide beta-Sulfolene