# List of straight-chain alkanes

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.
| Number of C atoms | Number of isomers | Number of isomers including stereoisomers | Molecular Formula | Name of straight chain | Synonyms |
| 1 | 1 | 1 | CH$_4$ | methane | methyl hydride; natural gas |
| 2 | 1 | 1 | C$_2$H$_6$ | ethane | dimethyl; ethyl hydride; methyl methane |
| 3 | 1 | 1 | C$_3$H$_8$ | propane | dimethyl methane; propyl hydride |
| 4 | 2 | 2 | C$_4$H$_{10}$ | n-butane | butyl hydride; methylethyl methane |
| 5 | 3 | 3 | C$_5$H$_{12}$ | n-pentane | amyl hydride; Skellysolve A |
| 6 | 5 | 5 | C$_6$H$_{14}$ | n-hexane | dipropyl; Gettysolve-B; hexyl hydride; Skellysolve B |
| 7 | 9 | 11 | C$_7$H$_{16}$ | n-heptane | dipropyl methane; Gettysolve-C; heptyl hydride; Skellysolve C |
| 8 | 18 | 24 | C$_8$H$_{18}$ | n-octane | dibutyl; octyl hydride |
| 9 | 35 | 55 | C$_9$H$_{20}$ | n-nonane | nonyl hydride; Shellsol 140 |
| 10 | 75 | 136 | C$_{10}$H$_{22}$ | n-decane | decyl hydride |
| 11 | 159 | 345 | C$_{11}$H$_{24}$ | n-undecane | hendecane |
| 12 | 355 | 900 | C$_{12}$H$_{26}$ | n-dodecane | adakane 12; bihexyl; dihexyl; duodecane |
| 13 | 802 | 2412 | C$_{13}$H$_{28}$ | n-tridecane | |
| 14 | 1858 | 6563 | C$_{14}$H$_{30}$ | n-tetradecane | |
| 15 | 4347 | 18127 | C$_{15}$H$_{32}$ | n-pentadecane | |
| 16 | 10359 | 50699 | C$_{16}$H$_{34}$ | n-hexadecane | cetane |
| 17 | 24894 | 143255 | C$_{17}$H$_{36}$ | n-heptadecane | |
| 18 | 60523 | 408429 | C$_{18}$H$_{38}$ | n-octadecane | |
| 19 | 148284 | 1173770 | C$_{19}$H$_{40}$ | n-nonadecane | |
| 20 | 366319 | 3396844 | C$_{20}$H$_{42}$ | n-icosane | didecyl icosane |
| 21 | 910726 | 9892302 | C$_{21}$H$_{44}$ | n-heneicosane | henicosane |
| 22 | 2278658 | 28972080 | C$_{22}$H$_{46}$ | n-docosane | |
| 23 | 5731580 | 85289390 | C$_{23}$H$_{48}$ | n-tricosane | |
| 24 | 14490245 | 252260276 | C$_{24}$H$_{50}$ | n-tetracosane | |
| 25 | 36797588 | 749329719 | C$_{25}$H$_{52}$ | n-pentacosane |
| 26 | 93839412 | 2234695030 | C$_{26}$H$_{54}$ | n-hexacosane | cerane |
| 27 | 240215803 | 6688893605 | C$_{27}$H$_{56}$ | n-heptacosane | |
| 28 | 617105614 | 20089296554 | C$_{28}$H$_{58}$ | n-octacosane | |
| 29 | 1590507121 | 60526543480 | C$_{29}$H$_{60}$ | n-nonacosane | |
| 30 | 4111846763 | 182896187256 | C$_{30}$H$_{62}$ | n-triacontane | |
| 31 | 10660307791 | 554188210352 | C$_{31}$H$_{64}$ | n-hentriacontane | untriacontane |
| 32 | 27711253769 | 1683557607211 | C$_{32}$H$_{66}$ | n-dotriacontane | dicetyl |
| 33 | 72214088660 | 5126819371356 | C$_{33}$H$_{68}$ | n-tritriacontane | |
| 34 | 188626236139 | 15647855317080 | C$_{34}$H$_{70}$ | n-tetratriacontane | |
| 35 | 493782952902 | 47862049187447 | C$_{35}$H$_{72}$ | n-pentatriacontane | |
| 36 | 1295297588128 | 146691564302648 | C$_{36}$H$_{74}$ | n-hexatriacontane | |
| 37 | 3404490780161 | 450451875783866 | C$_{37}$H$_{76}$ | n-heptatriacontane | |
| 38 | 8964747474595 | 1385724615285949 | C$_{38}$H$_{78}$ | n-octatriacontane | |
| 39 | 23647478933969 | 4270217915878409 | C$_{39}$H$_{80}$ | n-nonatriacontane | |
| 40 | 62481801147341 | 13180446189326135 | C$_{40}$H$_{82}$ | n-tetracontane | |
| 41 | 165351455535782 | 40745751356421890 | C$_{41}$H$_{84}$ | n-hentetracontane | |
| 42 | 438242894769226 | 126146261761339138 | C$_{42}$H$_{86}$ | n-dotetracontane | |
| 43 | 1163169707886427 | 391089580997271932 | C$_{43}$H$_{88}$ | n-tritetracontane | |
| 44 | 3091461011836856 | 1214115357550059889 | C$_{44}$H$_{90}$ | n-tetratetracontane | |
| 45 | 8227162372221203 | 3773978539594435261 | C$_{45}$H$_{92}$ | n-pentatetracontane | |
| 46 | 21921834086683418 | 1.17454674499017×10$^{19}$ | C$_{46}$H$_{94}$ | n-hexatetracontane | |
| 47 | 58481806621987010 | 3.65973634249825×10$^{19}$ | C$_{47}$H$_{96}$ | n-heptatetracontane | |
| 48 | 156192366474590639 | 1.14160680977903×10$^{20}$ | C$_{48}$H$_{98}$ | n-octatetracontane | |
| 49 | 417612400765382272 | 3.56492605035317×10$^{20}$ | C$_{49}$H$_{100}$ | n-nonatetracontane | |
| 50 | 1117743651746953270 | 1.11437894744930×10$^{21}$ | C$_{50}$H$_{102}$ | n-pentacontane | |
| 51 | 2994664179967370611 | 3.48695195511947×10$^{21}$ | C$_{51}$H$_{104}$ | n-henpentacontane | |
| 52 | 8031081780535296591 | 1.09212674104354×10$^{22}$ | C$_{52}$H$_{106}$ | n-dopentacontane | |
| 53 | 2.15577719135726×10$^{19}$ | 3.42372129990732×10$^{22}$ | C$_{53}$H$_{108}$ | n-tripentacontane | |
| 54 | 5.79191808731484×10$^{19}$ | 1.07425456458975×10$^{23}$ | C$_{54}$H$_{110}$ | n-tetrapentacontane | |
| 55 | 1.55745431857550×10$^{20}$ | 3.37353654348452×10$^{23}$ | C$_{55}$H$_{112}$ | n-pentapentacontane | |
| 56 | 4.19149571193412×10$^{20}$ | 1.06027803437626×10$^{24}$ | C$_{56}$H$_{114}$ | n-hexapentacontane | |
| 57 | 1.12893957836133×10$^{21}$ | 3.33501408819192×10$^{24}$ | C$_{57}$H$_{116}$ | n-heptapentacontane | |
| 58 | 3.04304357190683×10$^{21}$ | 1.04980159528436×10$^{25}$ | C$_{58}$H$_{118}$ | n-octapentacontane | |
| 59 | 8.20861536686375×10$^{21}$ | 3.30702230705762×10$^{25}$ | C$_{59}$H$_{120}$ | n-nonapentacontane | |
| 60 | 2.21587345357704×10$^{22}$ | 1.04250134336061×10$^{26}$ | C$_{60}$H$_{122}$ | n-hexacontane | |
| 61 | 5.98580978477069×10$^{22}$ | 3.28863382009164×10$^{26}$ | C$_{61}$H$_{124}$ | n-henhexacontane | |
| 62 | 1.61805725349297×10$^{23}$ | 1.03811173709570×10$^{27}$ | C$_{62}$H$_{126}$ | n-dohexacontane | |
| 63 | 4.37671691526159×10$^{23}$ | 3.27908841257682×10$^{27}$ | C$_{63}$H$_{128}$ | n-trihexacontane | |
| 64 | 1.18461618538531×10$^{24}$ | 1.03641522884615×10$^{28}$ | C$_{64}$H$_{130}$ | n-tetrahexacontane | |
| 65 | 3.20828506618148×10$^{24}$ | 3.27776398697850×10$^{28}$ | C$_{65}$H$_{132}$ | n-pentahexacontane | |
| 66 | 8.69413071202487×10$^{24}$ | 1.03723411195159×10$^{29}$ | C$_{66}$H$_{134}$ | n-hexahexacontane | |
| 67 | 2.35737961344482×10$^{25}$ | 3.28415364073692×10$^{29}$ | C$_{67}$H$_{136}$ | n-heptahexacontane | |
| 68 | 6.39551595273481×10$^{25}$ | 1.04042406553793×10$^{30}$ | C$_{68}$H$_{138}$ | n-octahexacontane | |
| 69 | 1.73603007393950×10$^{26}$ | 3.29784745978795×10$^{30}$ | C$_{69}$H$_{140}$ | n-nonahexacontane | |
| 70 | 4.71484798515330×10$^{26}$ | 1.04586901217870×10$^{31}$ | C$_{70}$H$_{142}$ | n-heptacontane | |
| 71 | 1.28115131576464×10$^{27}$ | 3.31851797512264×10$^{31}$ | C$_{71}$H$_{144}$ | n-henheptacontane | |
| 72 | 3.48296574914069×10$^{27}$ | 1.05347699979053×10$^{32}$ | C$_{72}$H$_{146}$ | n-doheptacontane | |
| 73 | 9.47344738680449×10$^{27}$ | 3.34590848928408×10$^{32}$ | C$_{73}$H$_{148}$ | n-triheptacontane | |
| 74 | 2.57793062389544×10$^{28}$ | 1.06317688936105×10$^{33}$ | C$_{74}$H$_{150}$ | n-tetraheptacontane | |
| 75 | 7.01832115122141×10$^{28}$ | 3.37982367012913×10$^{33}$ | C$_{75}$H$_{152}$ | n-pentaheptacontane | |
| 76 | 1.91156381393249×10$^{29}$ | 1.07491568187130×10$^{34}$ | C$_{76}$H$_{154}$ | n-hexaheptacontane | |
| 77 | 5.20874195248907×10$^{29}$ | 3.42012195021483×10$^{34}$ | C$_{77}$H$_{156}$ | n-heptaheptacontane | |
| 78 | 1.41990891534395×10$^{30}$ | 1.08865635628610×10$^{35}$ | C$_{78}$H$_{158}$ | n-octaheptacontane | |
| 79 | 3.87228257513701×10$^{30}$ | 3.46670937556328×10$^{35}$ | C$_{79}$H$_{160}$ | n-nonaheptacontane | |
| 80 | 1.05644769069467×10$^{31}$ | 1.10437611939016×10$^{36}$ | C$_{80}$H$_{162}$ | n-octacontane | |
| 81 | 2.88336094362773×10$^{31}$ | 3.51953462699296×10$^{36}$ | C$_{81}$H$_{164}$ | n-henoctacontane | |
| 82 | 7.87255854643910×10$^{31}$ | 1.12206499012211×10$^{37}$ | C$_{82}$H$_{166}$ | n-dooctacontane | |
| 83 | 2.15027809474797×10$^{32}$ | 3.57858499756067×10$^{37}$ | C$_{83}$H$_{168}$ | n-trioctacontane | |
| 84 | 5.87531723826577×10$^{32}$ | 1.14172465774427×10$^{38}$ | C$_{84}$H$_{170}$ | n-tetraoctacontane | |
| 85 | 1.60591377849471×10$^{33}$ | 3.64388315587311×10$^{38}$ | C$_{85}$H$_{172}$ | n-pentaoctacontane | |
| 86 | 4.39100290809332×10$^{33}$ | 1.16336756600997×10$^{39}$ | C$_{86}$H$_{174}$ | n-hexaoctacontane | |
| 87 | 1.20102579077569×10$^{34}$ | 3.71548456067735×10$^{39}$ | C$_{87}$H$_{176}$ | n-heptaoctacontane | |
| 88 | 3.28612955581209×10$^{34}$ | 1.18701618541837×10$^{40}$ | C$_{88}$H$_{178}$ | n-octaoctacontane | |
| 89 | 8.99409590248916×10$^{34}$ | 3.79347541983580×10$^{40}$ | C$_{89}$H$_{180}$ | n-nonaoctacontane | |
| 90 | 2.46245150242821×10$^{35}$ | 1.21270244338682×10$^{41}$ | C$_{90}$H$_{182}$ | n-nonacontane | |
| 91 | 6.74391606297983×10$^{35}$ | 3.87797110845861×10$^{41}$ | C$_{91}$H$_{184}$ | n-hennonacontane | |
| 92 | 1.84751504801261×10$^{36}$ | 1.24046728824609×10$^{42}$ | C$_{92}$H$_{186}$ | n-dononacontane | |
| 93 | 5.06281811212116×10$^{36}$ | 3.96911497803001×10$^{42}$ | C$_{93}$H$_{188}$ | n-trinonacontane | |
| 94 | 1.38778575295845×10$^{37}$ | 1.27036036776471×10$^{43}$ | C$_{94}$H$_{190}$ | n-tetranonacontane | |
| 95 | 3.80518360708038×10$^{37}$ | 4.06707750189460×10$^{43}$ | C$_{95}$H$_{192}$ | n-pentanonacontane | |
| 96 | 1.04363664561059×10$^{38}$ | 1.30243980672744×10$^{44}$ | C$_{96}$H$_{194}$ | n-hexanonacontane | |
| 97 | 2.86312976836850×10$^{38}$ | 4.17205571326637×10$^{44}$ | C$_{97}$H$_{196}$ | n-heptanonacontane | |
| 98 | 7.85684759853088×10$^{38}$ | 1.33677207115080×10$^{45}$ | C$_{98}$H$_{198}$ | n-octanonacontane | |
| 99 | 2.15659631984508×10$^{39}$ | 4.28427290059784×10$^{45}$ | C$_{99}$H$_{200}$ | n-nonanonacontane | |
| 100 | 5.92107203812581×10$^{39}$ | 1.37343190918329×10$^{47}$ | C$_{100}$H$_{202}$ | n-hectane | |
| 101 | 1.62607500143337×10$^{40}$ | | C$_{101}$H$_{204}$ | n-henihectane | |
| 102 | 4.46670631687268×10$^{40}$ | | C$_{102}$H$_{206}$ | n-dohectane | |
| 103 | 1.22726610195426×10$^{41}$ | | C$_{103}$H$_{208}$ | n-trihectane | |
| 104 | 3.37281538963752×10$^{41}$ | | C$_{104}$H$_{210}$ | n-tetrahectane | |
| 105 | 9.27143441542280×10$^{41}$ | | C$_{105}$H$_{212}$ | n-pentahectane | |
| 106 | 2.54917652030591×10$^{42}$ | | C$_{106}$H$_{214}$ | n-hexahectane | |
| 107 | 7.01051065630088×10$^{42}$ | | C$_{107}$H$_{216}$ | n-heptahectane | |
| 108 | 1.92838773361102×10$^{43}$ | | C$_{108}$H$_{218}$ | n-octahectane | |
| 109 | 5.30557278101059×10$^{43}$ | | C$_{109}$H$_{220}$ | n-nonahectane | |
| 110 | 1.46002972524313×10$^{44}$ | | C$_{110}$H$_{222}$ | n-decahectane | |
| 111 | 4.01865724190509×10$^{44}$ | | C$_{111}$H$_{224}$ | n-undecahectane | |
| 112 | 1.10633962543222×10$^{45}$ | | C$_{112}$H$_{226}$ | n-dodecahectane | |
| 113 | 3.04636987596851×10$^{45}$ | | C$_{113}$H$_{228}$ | n-tridecahectane | |
| 114 | 8.38999942017075×10$^{45}$ | | C$_{114}$H$_{230}$ | n-tetradecahectane | |
| 115 | 2.31113265930118×10$^{46}$ | | C$_{115}$H$_{232}$ | n-pentadecahectane | |
| 116 | 6.36751554673601×10$^{46}$ | | C$_{116}$H$_{234}$ | n-hexadecahectane | |
| 117 | 1.75467195960063×10$^{47}$ | | C$_{117}$H$_{236}$ | n-heptadecahectane | |
| 118 | 4.83616671898832×10$^{47}$ | | C$_{118}$H$_{238}$ | n-octadecahectane | |
| 119 | 1.33316731232142×10$^{48}$ | | C$_{119}$H$_{240}$ | n-nonadecahectane | |
| 120 | 3.67574018395043×10$^{48}$ | | C$_{120}$H$_{242}$ | n-icosahectane | |