new index	atom name	original index
1	C	6
2	C	7
3	C	5
4	C	2
5	C	3
6	N	1
7	O	4
8	O	8
9	H	13
10	H	15
11	H	14
12	H	18
13	H	16
14	H	17
15	H	12
16	H	11
17	H	9
18	H	10
19	H	19