Assertion: purine | /r/HasProperty | dissolved in a mixture of 2.0 eq
Facets:
Source sentences:
text: In pure trifluoroacetic acid, not only N1 was extensively protonated, which was observed when purine (245) was dissolved in a mixture of 2.0 eq. of trifluoroacetic acid in dimethyl sulfoxide-d 6 , but also large shielding of N7 and N9 of purine (