List of straight-chain alkanes

Short description: none

The following is a list of straight-chain alkanes, the total number of isomers of each (including branched chains), and their common names, sorted by number of carbon atoms.[1][2]

Number of C atoms  | Number of isomers[3][4] | Number of isomers including stereoisomers[3][5] | Molecular Formula  | Name of straight chain  | Synonyms

|
|
|
|
|

1  | 1  | 1  | CH
4 | methane | methyl hydride; natural gas
2  | 1  | 1  | C

6 | ethane | dimethyl; ethyl hydride; methyl methane
3  | 1  | 1  | C

8 | propane | dimethyl methane; propyl hydride
4  | 2  | 2  | C

10 | n-butane | butyl hydride; methylethyl methane
5  | 3  | 3  | C

12 | n-pentane | amyl hydride; Skellysolve A
6  | 5  | 5  | C

14 | n-hexane | dipropyl; Gettysolve-B; hexyl hydride; Skellysolve B
7  | 9  | 11  | C

16 | n-heptane | dipropyl methane; Gettysolve-C; heptyl hydride; Skellysolve C
8  | 18  | 24  | C

18 | n-octane | dibutyl; octyl hydride
9  | 35  | 55  | C

20 | n-nonane | nonyl hydride; Shellsol 140
10  | 75  | 136  | C
10H
22 | n-decane | decyl hydride
11  | 159  | 345  | C
11H
24 | n-undecane | hendecane
12  | 355  | 900  | C
12H
26 | n-dodecane | adakane 12; bihexyl; dihexyl; duodecane
13  | 802  | 2412 | C
13H
28 | n-tridecane |
14  | 1858 | 6563 | C
14H
30 | n-tetradecane |
15  | 4347 | 18127 | C
15H
32 | n-pentadecane |
16  | 10359 | 50699 | C
16H
34 | n-hexadecane | cetane
17  | 24894 | 143255 | C
17H
36 | n-heptadecane |
18  | 60523 | 408429 | C
18H
38 | n-octadecane |
19  | 148284 | 1173770 | C
19H
40 | n-nonadecane |
20  | 366319 | 3396844 | C
20H
42 | n-eicosane | didecyl; icosane
21  | 910726 | 9892302 | C
21H
44 | n-heneicosane | henicosane; uneicosane
22  | 2278658 | 28972080 | C
22H
46 | n-docosane  |
23  | 5731580 | 85289390 | C
23H
48 | n-tricosane  |
24  | 14490245 | 252260276 | C
24H
50 | n-tetracosane |
25  | 36797588 | 749329719 | C
25H
52 | n-pentacosane  |
26 | 93839412 | 2234695030 | C
26H
54 | n-hexacosane  | cerane
27  | 240215803 | 6688893605 | C
27H
56 | n-heptacosane  |
28  | 617105614 | 20089296554 | C
28H
58 | n-octacosane  |
29  | 1590507121 | 60526543480 | C
29H
60 | n-nonacosane |
30  | 4111846763 | 182896187256 | C
30H
62 | n-triacontane  |
31  | 10660307791 | 554188210352 | C
31H
64 | n-hentriacontane | untriacontane
32  | 27711253769 | 1683557607211 | C
32H
66 | n-dotriacontane  | dicetyl
33  | 72214088660 | 5126819371356 | C
33H
68 | n-tritriacontane  |
34  | 188626236139 | 15647855317080 | C
34H
70 | n-tetratriacontane  |
35  | 493782952902 | 47862049187447 | C
35H
72 | n-pentatriacontane |
36  | 1295297588128 | 146691564302648 | C
36H
74 | n-hexatriacontane  |
37  | 3404490780161 | 450451875783866 | C
37H
76 | n-heptatriacontane  |
38  | 8964747474595 | 1385724615285949 | C
38H
78 | n-octatriacontane  |
39  | 23647478933969 | 4270217915878409 | C
39H
80 | n-nonatriacontane  |
40  | 62481801147341 | 13180446189326135 | C
40H
82 | n-tetracontane  |
41  | 165351455535782 | 40745751356421890 | C
41H
84 | n-hentetracontane  |
42  | 438242894769226 | 126146261761339138 | C
42H
86 | n-dotetracontane  |
43  | 1163169707886427 | 391089580997271932 | C
43H
88 | n-tritetracontane  |
44  | 3091461011836856 | 1214115357550059889 | C
44H
90 | n-tetratetracontane  |
45  | 8227162372221203 | 3773978539594435261 | C
45H
92 | n-pentatetracontane  |
46  | 21921834086683418 | 1.17454674499017×1019 | C
46H
94 | n-hexatetracontane  |
47  | 58481806621987010 | 3.65973634249825×1019 | C
47H
96 | n-heptatetracontane  |
48  | 156192366474590639 | 1.14160680977903×1020 | C
48H
98 | n-octatetracontane  |
49  | 417612400765382272 | 3.56492605035317×1020 | C
49H
100 | n-nonatetracontane  |
50  | 1117743651746953270 | 1.11437894744930×1021 | C
50H
102 | n-pentacontane  |
51  | 2994664179967370611 | 3.48695195511947×1021 | C
51H
104 | n-henpentacontane  |
52  | 8031081780535296591 | 1.09212674104354×1022 | C
52H
106 | n-dopentacontane  |
53  | 2.15577719135726×1019 | 3.42372129990732×1022 | C
53H
108 | n-tripentacontane  |
54  | 5.79191808731484×1019 | 1.07425456458975×1023 | C
54H
110 | n-tetrapentacontane  |
55  | 1.55745431857550×1020 | 3.37353654348452×1023 | C
55H
112 | n-pentapentacontane  |
56  | 4.19149571193412×1020 | 1.06027803437626×1024 | C
56H
114 | n-hexapentacontane  |
57  | 1.12893957836133×1021 | 3.33501408819192×1024 | C
57H
116 | n-heptapentacontane  |
58  | 3.04304357190683×1021 | 1.04980159528436×1025 | C
58H
118 | n-octapentacontane  |
59  | 8.20861536686375×1021 | 3.30702230705762×1025 | C
59H
120 | n-nonapentacontane  |
60  | 2.21587345357704×1022 | 1.04250134336061×1026 | C
60H
122 | n-hexacontane  |
61  | 5.98580978477069×1022 | 3.28863382009164×1026 | C
61H
124 | n-henhexacontane  |
62  | 1.61805725349297×1023 | 1.03811173709570×1027 | C
62H
126 | n-dohexacontane  |
63  | 4.37671691526159×1023 | 3.27908841257682×1027 | C
63H
128 | n-trihexacontane  |
64  | 1.18461618538531×1024 | 1.03641522884615×1028 | C
64H
130 | n-tetrahexacontane  |
65  | 3.20828506618148×1024 | 3.27776398697850×1028 | C
65H
132 | n-pentahexacontane  |
66  | 8.69413071202487×1024 | 1.03723411195159×1029 | C
66H
134 | n-hexahexacontane  |
67  | 2.35737961344482×1025 | 3.28415364073692×1029 | C
67H
136 | n-heptahexacontane  |
68  | 6.39551595273481×1025 | 1.04042406553793×1030 | C
68H
138 | n-octahexacontane  |
69  | 1.73603007393950×1026 | 3.29784745978795×1030 | C
69H
140 | n-nonahexacontane  |
70  | 4.71484798515330×1026 | 1.04586901217870×1031 | C
70H
142 | n-heptacontane  |
71  | 1.28115131576464×1027 | 3.31851797512264×1031 | C
71H
144 | n-henheptacontane  |
72  | 3.48296574914069×1027 | 1.05347699979053×1032 | C
72H
146 | n-doheptacontane  |
73  | 9.47344738680449×1027 | 3.34590848928408×1032 | C
73H
148 | n-triheptacontane  |
74  | 2.57793062389544×1028 | 1.06317688936105×1033 | C
74H
150 | n-tetraheptacontane  |
75  | 7.01832115122141×1028 | 3.37982367012913×1033 | C
75H
152 | n-pentaheptacontane  |
76  | 1.91156381393249×1029 | 1.07491568187130×1034 | C
76H
154 | n-hexaheptacontane  |
77  | 5.20874195248907×1029 | 3.42012195021483×1034 | C
77H
156 | n-heptaheptacontane  |
78  | 1.41990891534395×1030 | 1.08865635628610×1035 | C
78H
158 | n-octaheptacontane  |
79  | 3.87228257513701×1030 | 3.46670937556328×1035 | C
79H
160 | n-nonaheptacontane  |
80  | 1.05644769069467×1031 | 1.10437611939016×1036 | C
80H
162 | n-octacontane  |
81  | 2.88336094362773×1031 | 3.51953462699296×1036 | C
81H
164 | n-henoctacontane  |
82  | 7.87255854643910×1031 | 1.12206499012211×1037 | C
82H
166 | n-dooctacontane  |
83  | 2.15027809474797×1032 | 3.57858499756067×1037 | C
83H
168 | n-trioctacontane  |
84  | 5.87531723826577×1032 | 1.14172465774427×1038 | C
84H
170 | n-tetraoctacontane  |
85  | 1.60591377849471×1033 | 3.64388315587311×1038 | C
85H
172 | n-pentaoctacontane  |
86  | 4.39100290809332×1033 | 1.16336756600997×1039 | C
86H
174 | n-hexaoctacontane  |
87  | 1.20102579077569×1034 | 3.71548456067735×1039 | C
87H
176 | n-heptaoctacontane  |
88  | 3.28612955581209×1034 | 1.18701618541837×1040 | C
88H
178 | n-octaoctacontane  |
89  | 8.99409590248916×1034 | 3.79347541983580×1040 | C
89H
180 | n-nonaoctacontane  |
90  | 2.46245150242821×1035 | 1.21270244338682×1041 | C
90H
182 | n-nonacontane  |
91  | 6.74391606297983×1035 | 3.87797110845861×1041 | C
91H
184 | n-hennonacontane  |
92  | 1.84751504801261×1036 | 1.24046728824609×1042 | C
92H
186 | n-dononacontane  |
93  | 5.06281811212116×1036 | 3.96911497803001×1042 | C
93H
188 | n-trinonacontane  |
94  | 1.38778575295845×1037 | 1.27036036776471×1043 | C
94H
190 | n-tetranonacontane  |
95  | 3.80518360708038×1037 | 4.06707750189460×1043 | C
95H
192 | n-pentanonacontane  |
96  | 1.04363664561059×1038 | 1.30243980672744×1044 | C
96H
194 | n-hexanonacontane  |
97  | 2.86312976836850×1038 | 4.17205571326637×1044 | C
97H
196 | n-heptanonacontane  |
98  | 7.85684759853088×1038 | 1.33677207115080×1045 | C
98H
198 | n-octanonacontane  |
99  | 2.15659631984508×1039 | 4.28427290059784×1045 | C
99H
200 | n-nonanonacontane  |
100  | 5.92107203812581×1039 | 1.37343190918329×1047 | C
100H
202 | n-hectane |
101  | 1.62607500143337×1040 |  | C
101H
204 | n-henhectane  |
102  | 4.46670631687268×1040 |  | C
102H
206 | n-dohectane  |
103  | 1.22726610195426×1041 |  | C
103H
208 | n-trihectane  |
104  | 3.37281538963752×1041 |  | C
104H
210 | n-tetrahectane  |
105  | 9.27143441542280×1041 |  | C
105H
212 | n-pentahectane  |
106  | 2.54917652030591×1042 |  | C
106H
214 | n-hexahectane  |
107  | 7.01051065630088×1042 |  | C
107H
216 | n-heptahectane  |
108  | 1.92838773361102×1043 |  | C
108H
218 | n-octahectane  |
109  | 5.30557278101059×1043 |  | C
109H
220 | n-nonahectane  |
110  | 1.46002972524313×1044 |  | C
110H
222 | n-decahectane  |
111  | 4.01865724190509×1044 |  | C
111H
224 | n-undecahectane  |
112  | 1.10633962543222×1045 |  | C
112H
226 | n-dodecahectane  |
113  | 3.04636987596851×1045 |  | C
113H
228 | n-tridecahectane  |
114  | 8.38999942017075×1045 |  | C
114H
230 | n-tetradecahectane  |
115  | 2.31113265930118×1046 |  | C
115H
232 | n-pentadecahectane  |
116  | 6.36751554673601×1046 |  | C
116H
234 | n-hexadecahectane  |
117  | 1.75467195960063×1047 |  | C
117H
236 | n-heptadecahectane  |
118  | 4.83616671898832×1047 |  | C
118H
238 | n-octadecahectane  |
119  | 1.33316731232142×1048 |  | C
119H
240 | n-nonadecahectane  |
120  | 3.67574018395043×1048 |  | C
120H
242 | n-eicosahectane  |

## See also

* Higher alkane
* List of compounds with carbon numbers 50+

## References

1. ↑ "organic chemistry - How to determine number of structural isomers?". Stack Exchange. https://chemistry.stackexchange.com/questions/16135/how-to-determine-number-of-structural-isomers.
2. ↑ "Paraffins - Rosetta Code". 13 January 2019. https://rosettacode.org/wiki/Paraffins.
3. ↑ 3.0 3.1 Fujita, Shinsaku (2007). "Alkanes as Stereoisomers. Enumeration by the Combination of Two Dichotomies for Three-Dimensional Trees". MATCH Commun. Math. Comput. Chem. 57 (2): 328 (PDF p. 30). ISSN 0340-6253. http://match.pmf.kg.ac.rs/electronic_versions/Match57/n2/match57n2_299-340.pdf. Retrieved 29 March 2019.
4. ↑ Sloane, N. J. A., ed. "Sequence A000602". OEIS Foundation. https://oeis.org/A000602.
5. ↑ Sloane, N. J. A., ed. "Sequence A000628". OEIS Foundation. https://oeis.org/A000628.

* v
* t
* e

Alkanes

* Methane (CH4)
* Ethane (C2H6)
* Propane (C3H8)
* Butane (C4H10)
* Pentane (C5H12)
* Hexane (C6H14)
* Heptane (C7H16)
* Octane (C8H18)
* Nonane (C9H20)
* Decane (C10H22)
* Undecane (C11H24)
* Dodecane (C12H26)
* Tridecane (C13H28)
* Tetradecane (C14H30)
* Pentadecane (C15H32)
* Hexadecane / Cetane (C16H34)
* Heptadecane (C17H36)
* Octadecane (C18H38)
* Nonadecane (C19H40)
* Icosane (C20H42)
* Heneicosane (C21H44)
* Tetracosane (C24H50)
* Nonacosane (C29H60)
* Hentriacontane (C31H64)

* Higher alkanes
* List of alkanes

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