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cas77Log in. Open app. cas77's profile picture. 3 posts. 1 follower. 0 following. cas77. Follow. Photo by @cas77 on January 06, 2012. Photo by @cas77 on DecemberDivinyl sulfone (stabilised with hydroquinone) for synthesis. CAS 77-77-0, chemical formula (CH₂=CH)₂SO₂. - Find MSDS or SDS, a COA, data sheets and more information.