number atom shift 3 C 152.037 4 C 152.066 5 C 113.514 6 C 113.546 7 C 118.081 8 C 118.098 9 H 4.032 10 H 4.036 11 H 7.245 12 H 7.247 13 H 8.087 14 H 8.084