Tris is an abbreviation of the organic compound known as tris(hydroxymethyl)aminomethane, with the formula (HOCH2)3CNH2. Tris is extensively used in as a major component in buffer solutions.
This 1M solution is has a pH of 9.0. Other 1M Tris solutions are also available with the following pH:
pH7.0 , pH7.2 , pH7.5 , pH8.0 , pH8.5
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