number atom shift 1 C 152.078 2 C 138.979 3 C 65.768 4 C 120.545 5 C 153.508 6 C 148.173 7 C 92.396 8 C 77.364 9 C 82.178 10 C 96.295 11 N 85.948 12 N 256.787 13 N 234.455 14 N 262.222 15 N 182.424 20 H 9.899 21 H 9.328 22 H 4.587 23 H 4.399 24 H 5.332 25 H 4.995 26 H 5.107 27 H 7.252 28 H 5.471 29 H 6.263 30 H 0.165 31 H 0.386 32 H 6.588