Dragon molecular descriptors
Dragon 6 can calculate 4885 molecular descriptors. The user can calculate not only the simplest atom types, functional groups and fragment counts, but also several topological and geometrical descriptors. Some molecular properties are also calculated by using some common models taken from the literature. Moreover, the Lipinski's alert index together with some other new drug-like and lead-like indices are provided. The complete list of new molecular descriptors calculated by Dragon 6 is given in the on-line help.
Look at the complete list of molecular descriptors (pdf file) calculated by Dragon 6.
Look at the book Molecular Descriptors for Chemoinformatics for information about all the molecular descriptors.
Important changes have been made in the organization of molecular descriptors in different logical blocks. These were further divided into sub-blocks in order to make management, selection, and analysis of descriptors easier. Here the list of blocks of molecular descriptors calculated by Dragon 6:




ID Block |
Block description |
Desc. No. |
1 |
Constitutional descriptors | 43 |
2 |
Ring descriptors | 32 |
3 |
Topological indices | 75 |
4 |
Walk and path counts | 46 |
5 |
Connectivity indices | 37 |
6 |
Information indices | 48 |
7 |
2D matrix-based descriptors | 550 |
8 |
2D autocorrelations | 213 |
9 |
Burden eigenvalues | 96 |
10 |
P_VSA-like descriptors | 45 |
11 |
ETA indices | 23 |
12 |
Edge adjacency indices | 324 |
13 |
Geometrical descriptors | 38 |
14 |
3D matrix-based descriptors | 90 |
15 |
3D autocorrelations | 80 |
16 |
RDF descriptors | 210 |
17 |
3D-MoRSE descriptors | 224 |
18 |
WHIM descriptors | 114 |
19 |
GETAWAY descriptors | 273 |
20 |
Randic molecular profiles | 41 |
21 |
Functional group counts | 154 |
22 |
Atom-centred fragments | 115 |
23 |
Atom-type E-state indices | 170 |
24 |
CATS 2D | 150 |
25 |
2D Atom Pairs | 1596 |
26 |
3D Atom Pairs | 36 |
27 |
Charge descriptors | 15 |
28 |
Molecular properties | 20 |
29 |
Drug-like indices | 27 |