number	atom	shift
3	C	175.835
4	C	139.197
5	C	130.429
6	C	139.250
7	C	135.174
8	C	136.977
9	C	139.842
10	H	7.719
11	H	8.499
12	H	9.556
13	H	8.675
14	H	8.812
15	H	8.771