Purity: 45-55 g/L (TAC2O content, gravimetric)
Other Notes: Fast Deprotection Cap A solution must be used for synthesis with Sigma-Aldrich's TAC-protected phosphoramidites. Fast Deprotection Cap A solution, containing tert-butylphenoxyacetyl acetic anhydride (TAC2O) in tetrahydrofuran, is used in place of Cap A solution to ensure that the displacement of tert-butylphenoxyacetyl (TAC) on guanine bases of the TAC-protected DNA and RNA phosphoramidites does not occur.