cas7777-86-1 · Trizma base · Tris(hydroxymethyl)aminomethane · Tris base · Sma 7Divinyl 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.