Dossier: Methodology for Process Development at IFP Energies nouvelles
Open Access

Table 1.

Number of possible isomers of Alkanes, Alkenes, Alkynes (Cayley, 1875; Read, 1976; Hendrickson and Parks, 1991; Bytautas and Klein 1998; Faulon et al., 2005)

Carbon number Number of possible isomers
Alkanes Alkenes Alkynes
1 1
5 3 5 3
10 75 377 171
15 4 347 36 564 15 167
20 366 319 4 224 993 1 679 869
25 36 797 588 536 113 477 208 094 977
30 4 111 846 763 72 253 682 560 27 612 603 765
35 493 782 952 902 3 838 066 701 350
40 62 481 801 147 341 551 645 375 673 949
45 8 227 162 372 221 203 81 319 947 893 937 569
50 1 117 743 651 746 950 000 12 227 375 730 982 990 115

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