number atom shift 1 C 20.096 2 C 140.971 3 C 64.508 4 C 206.697 5 C 158.635 6 C 126.610 7 C 121.027 8 C 158.703 9 N 380.039 16 P 6.309 17 H 3.627 18 H 3.985 19 H 4.016 20 H 9.677 21 H 6.017 22 H 6.507 23 H 12.184 24 H 14.316 25 H 4.033 26 H 3.825