List of straight-chain alkanes

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The following is a list of straight-chain and branched alkanes and their common names, sorted by number of carbon atoms.

Number of C atoms Number of isomers Number of isomers including stereoisomers Molecular Formula Name of straight chain Synonyms
1 1 1 CH4 methane methyl hydride; natural gas
2 1 1 C2H6 ethane dimethyl; ethyl hydride; methyl methane
3 1 1 C3H8 propane dimethyl methane; propyl hydride
4 2 2 C4H10 n-butane butyl hydride; methylethyl methane
5 3 3 C5H12 n-pentane amyl hydride; Skellysolve A
6 5 5 C6H14 n-hexane dipropyl; Gettysolve-B; hexyl hydride; Skellysolve B
7 9 11 C7H16 n-heptane dipropyl methane; Gettysolve-C; heptyl hydride; Skellysolve C
8 18 24 C8H18 n-octane dibutyl; octyl hydride
9 35 55 C9H20 n-nonane nonyl hydride; Shellsol 140
10 75 136 C10H22 n-decane decyl hydride
11 159 345 C11H24 n-undecane hendecane
12 355 900 C12H26 n-dodecane adakane 12; bihexyl; dihexyl; duodecane
13 802 2412 C13H28 n-tridecane
14 1858 6563 C14H30 n-tetradecane
15 4347 18127 C15H32 n-pentadecane
16 10359 50699 C16H34 n-hexadecane cetane
17 24894 143255 C17H36 n-heptadecane
18 60523 408429 C18H38 n-octadecane
19 148284 1173770 C19H40 n-nonadecane
20 366319 3396844 C20H42 n-icosane didecyl icosane
21 910726 9891650 C21H44 n-henicosane henicosane
22 2278638 28972080 C22H46 n-docosane
23 5731580 85289390 C23H48 n-tricosane
24 14490245 252260276 C24H50 n-tetracosane tetrakosane
25 36797588 749329719 C25H52 n-pentacosane paraffin wax
26 93839412 2234695030 C26H54 n-hexacosane cerane; hexeikosane
27 240215803 6688893603 C27H56 n-heptacosane
28 617105614 20089296554 C28H58 n-octacosane
29 1590507121 60526543480 C29H60 n-nonacosane
30 4111846763 182896187256 C30H62 n-triacontane
31 10660307791 554188210352 C31H64 n-hentriacontane untriacontane
32 27711253769 1683557607211 C32H66 n-dotriacontane dicetyl
33 72214088660 5126819371356 C33H68 n-tritriacontane
34 188626236139 15647855317080 C34H70 n-tetratriacontane
35 493782952902 47862049187447 C35H72 n-pentatriacontane
36 1295297588128 146691564302648 C36H74 n-hexatriacontane
37 3404490780161 450451875783866 C37H76 n-heptatriacontane
38 8964747474595 1385724615285949 C38H78 n-octatriacontane
39 23647478933969 4270217915878409 C39H80 n-nonatriacontane
40 62481801147341 13180446189326135 C40H82 n-tetracontane
41 165351455535782 40745751356421890 C41H84 n-hentetracontane
42 438242894769226 126146261761339138 C42H86 n-dotetracontane
43 1163169707886427 391089580997271932 C43H88 n-tritetracontane
44 3091461011836856 1214115357550059889 C44H90 n-tetratetracontane
45 8227162372221203 3773978533594435261 C45H92 n-pentatetracontane
46 21921834086683418 1.1745467×1019 C46H94 n-hexatetracontane
47 58481806621987010 3.6597363×1019 C47H96 n-heptatetracontane
48 156192366474590639 1.1416068×1020 C48H98 n-octatetracontane
49 417612400765382272 3.5649261×1020 C49H100 n-nonatetracontane
50 1117743651746953270 1.1143789×1021 C50H102 n-pentacontane
51 2.99466×1018 C51H104 n-henpentacontane
52 8.03108×1018 C52H106 n-dopentacontane
53 2.15578×1019 C53H108 n-tripentacontane
54 5.79192×1019 C54H110 n-tetrapentacontane
55 1.55745×1020 C55H112 n-pentapentacontane
56 4.1915×1020 C56H114 n-hexapentacontane
57 1.12894×1021 C57H116 n-heptapentacontane
58 3.04304×1021 C58H118 n-octapentacontane
59 8.20862×1021 C59H120 n-nonapentacontane
60 2.21587×1022 C60H122 n-hexacontane
61 5.98581×1022 C61H124 n-henhexacontane
62 1.61806×1023 C62H126 n-dohexacontane
63 4.37672×1023 C63H128 n-trihexacontane
64 1.18462×1024 C64H130 n-tetrahexacontane
65 3.20829×1024 C65H132 n-pentahexacontane
66 8.69413×1024 C66H134 n-hexahexacontane
67 2.35738×1025 C67H136 n-heptahexacontane
68 6.39552×1025 C68H138 n-octahexacontane
69 1.73603×1026 C69H140 n-nonahexacontane
70 4.71485×1026 C70H142 n-heptacontane
71 1.28115×1027 C71H144 n-henheptacontane
72 3.48297×1027 C72H146 n-doheptacontane
73 9.47345×1027 C73H148 n-triheptacontane
74 2.57793×1028 C74H150 n-tetraheptacontane
75 7.01832×1028 C75H152 n-pentaheptacontane
76 1.91156×1029 C76H154 n-hexaheptacontane
77 5.20874×1029 C77H156 n-heptaheptacontane
78 1.41991×1030 C78H158 n-octaheptacontane
79 3.87228×1030 C79H160 n-nonaheptacontane
80 1.05645×1031 C80H162 n-octacontane
81 2.88336×1031 C81H164 n-henoctacontane
82 7.87256×1031 C82H166 n-dooctacontane
83 2.15028×1032 C83H168 n-trioctacontane
84 5.87532×1032 C84H170 n-tetraoctacontane
85 1.60591×1033 C85H172 n-pentaoctacontane
86 4.39100×1033 C86H174 n-hexaoctacontane
87 1.20103×1034 C87H176 n-heptaoctacontane
88 3.28613×1034 C88H178 n-octaoctacontane
89 8.99410×1034 C89H180 n-nonaoctacontane
90 2.46245×1035 C90H182 n-nonacontane
91 6.74392×1035 C91H184 n-hennonacontane
92 1.84752×1036 C92H186 n-dononacontane
93 5.06282×1036 C93H188 n-trinonacontane
94 1.38779×1037 C94H190 n-tetranonacontane
95 3.80518×1037 C95H192 n-pentanonacontane
96 1.04364×1038 C96H194 n-hexanonacontane
97 2.86313×1038 C97H196 n-heptanonacontane
98 7.85685×1038 C98H198 n-octanonacontane
99 2.15660×1039 C99H200 n-nonanonacontane
100 5.92107×1039 C100H202 n-hectane
101 1.62608×1040 C101H204 n-henihectane
102 4.46671×1040 C102H206 n-dohectane
103 1.22727×1041 C103H208 n-trihectane
104 3.37282×1041 C104H210 n-tetrahectane
105 9.27143×1041 C105H212 n-pentahectane
106 2.54918×1042 C106H214 n-hexahectane
107 7.01051×1042 C107H216 n-heptahectane
108 1.92839×1043 C108H218 n-octahectane
109 5.30557×1043 C109H220 n-nonahectane
110 1.46003×1044 C110H222 n-decahectane
111 4.01866×1044 C111H224 n-undecahectane
112 1.1063396×1045 C112H226 n-dodecahectane
113 3.0479186×1045 C113H228 n-tridecahectane
114 8.3899994×1045 C114H230 n-tetradecahectane
115 2.3122936×1046 C115H232 n-pentadecahectane
116 6.3675155×1046 C116H234 n-hexadecahectane
117 1.7555388×1047 C117H236 n-heptadecahectane
118 4.8361667×1047 C118H238 n-octadecahectane
119 1.3338183×1048 C119H240 n-nonadecahectane
120 3.6757402×1048 C120H242 n-icosahectane
...

External links[edit]

  • Isomer Count A calculator that can determine the number of isomers, stereoisomers, and structurally unfavourable isomers for a particular alkane.