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Table 4 Chemical composition of essential oil (hexane extract) from roots/rhizomes of C. Articulatus

From: Anti-Onchocerca activity and phytochemical analysis of an essential oil from Cyperus articulatus L

Monoterpenes
Compound (Chemical name) Retention time (RT) min  Nature of compound
Camphenol, 6- 4.4913 Monoterpene alcohol
Bicyclo[3.1.1 ]heptan-3-ol, 6,6-dimethyl-2-methylene-, [1S-(1 à,3à,5à)]- 4.7638 -do-
Bicyclo[3.1.1 ]hept-3-en-2-ol, 4,6,6-trimethyl-, [1S-(1 à,2a,5à)]- 4.8523 -do-
Bicyclo[3.1.0]hexan-3-ol, 4-methylene-1-(1-methylethyl)-, [1.S-(1 à,3a,5à)]- 4.9535 -do-
(−)-Myrtenol 5.8193 -do-
Bicyclo[3.1.0]hex-3-en-2-one, 4-methyl-1-(1-methylethyl)- 6.0775 Monoterpene ketone
Bicyclo[3.1.1 ]hept-3-en-2-one, 4,6,6-trimethyl-,(1S)- 6.0815 -do-
3,5-Heptadienal, 2-ethylidene-6-methyl- 6.2340 Monoterpene aldehyde
Bicyclo[4.4.0]dec-2-ene-4-01, 2-methyl-9-(prop-1-en-3-01-2-yl)- 15.8243  
Sesquiterpenes
Isolongifolene, 9,10-dehydro- 9.0658 Hydroxy compound
Copaene 9.2450  
α-Cubebene 9.3067  
Cadina-1 (10),6,8-triene 9.3247  
7-Tetracyclo[6.2.1.0(3.8)O(3.9)]undecanol, 4,4,11,11-tetramethyl- 11.0275 Sesquiterpene alcohol
Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro-7 -methyl-4-methylene-1-(1-methylethyl)-, (1à,4aà,8aà)- 11.1640  
Naphthalene, 1,2,3,4-tetrahydro-1 ,6-dimethyl-4-(1-methylethyl)-, (1S-cis)- 11.2919  
(+)-Epi-bicyclosesquipheliandrene 11.5152  
2,3,4-Trifluorobenzoic acid, 4-nitrophenyl ester 11.6408  
7-Tetracyclo[6.2.1.0(3.8)0(3.9)]undecanol, 4,4,11,11-tetramethyl- 11.7243 Sesquiterpene alcohol
2-Naphthalenemethanol, 1,2,3,4,4a ,8a-hexahydro-à, à,4a, 8-tetramethyl-, [2R-(2à,4aà,8aà)]- 11.7325 -do-
Cycloisolongifolene, 8,9-dehydro- 12.2912  
Caryophyllene oxide 13.2509 Sesquiterpene oxide
Longipinocarvone 13.7303  
3-lsopropyl-6, 7-dimethyltricycio[4.4.0.0(2,8)]decane-9, 1O-diol 13.7752 Sesquiterpene alcohol
Compound (Chemical name) Retention time (RT) min  Nature of compound
Sesquiterpenes (cont’d)
cis-Z-α-Bisabolene epoxide 14.0907 Sesquiterpene epoxide
Longiverbenone 14.9277  
2,2,7,7 -Tetramethyltricyclo[6.2.1.0(1 ,6)]undec-4-en-3-one 15.6833 Sesquiterpene ketone
Acetic acid, 3-hyd roxy-6-isopropenyl-4, 8a-dimethyl-1 ,2,3,5,6,7,8, 8aoctahydronaphthalen-2-yl ester 15.7474 Sesquiterpene ester
5( 1H)-Azulenone, 2,4,6,7,8, 8a-hexahydro-3, 8-dimethyl-4-( 1-methylethylidene)-, (8S-cis)- 15.7488  
Perhydrocyclopropa[e]azulene-4,5,6-triol, 1,1 ,4,6-tetramethyl 15.8186  
1 H-Cycloprop[e]azulen-7 -01, decahydro-1 ,1,7 -trimethyl-4-methylene-, [1ar-(1 aà,4aà,7a,7aa,7bà)]- 15.8686  
(−)-Spathulenol 15.8706 Sesquiterpene alcohol
Corymbolone 15.9639 Sesquiterpene ketoalcohol
Spiro[4.5]decan-7 -one, 1,8-dimethyl-8,9-epoxy-4-isopropyl- 16.1027 Sesquiterpene ketone
9H-Cycioisolongifolene, 8-oxo- 16.2514  
2( 1H) Naphthalenone, 3,5,6,7,8, 8a-hexahyd ro-4, 8adimethyl-6-( 1-methylethenyl)- 16.2630 Sesquiterpene ketone
E-15-Heptadecenal 16.4377 Sesquiterpene aldehyde
6-lsopropenyl-4,8a-dimethyl-1 ,2,3,5,6,7,8,8aoctahydronaphthalene-2,3-diol 16.4982 Sesquiterpene alcohol
2( 1H)-Naphthalenone, 4a,5,6, 7, 8,8a-hexahydro-6-[1-(hydroxymethyl)ethenyl]-4,8adimethyl-, [4ar-(4aà,6à,8aà)]- 18.5973 Sesquiterpene ketone
1-Naphthalenol, decahydro-1 ,4a-dimethyl-7 -( 1-methylethylidene )-, [1 R-( 1à,4aa,8aà)]- 27.1088 Sesquiterpene alcohol
Triterpenes
Cyclodecasiloxane, eicosamethyl- 22.6754  
Polyterpenes
Tetracosamethyl-cyclododecasiloxane 28.8145  
Compound (Chemical name) Retention time (RT) min  Nature of compound
Hydrocarbons
2,6-Dimethyl-1 ,3,5,7-octatetraene, E, E- 3.0988 Unsaturated hydrocarbon
Benzene, 1-methyl-3-(1-methylethyl)- 3.1698 Aromatic hydrocarbon
1 H-Cycloprop[e]azulene, 1a,2,3,4,4a,5,6, 7boctahydro-1 ,1,4,7 -tetramethyl-, [1aR-(1aà,4à,4aa, 7bà)]- 9.7772 -do-
3H-3a, 7-Methanoazulene, 2,4,5,6,7 ,8-hexahydro-1,4,9,9-tetramethyl-, [3aR-(3aà,4a,7à)]- 9.8550 -do-
Benzene, 1-(1 ,5-dimethyl-4-hexenyl)-4-methyl- 10.1253 -do-
Benzene, 1-methyl-4-(1 ,2,2-trimethylcyclopentyl)-,(R)- 10.3648 -do-
Azulene, 1,2,3,5,6,7 ,8,8a-octahydro-1 ,4-dimethyl-7-(1-methylethenyl)-, [1 S-(1 à,7à,8aa)]- 10.8948 -do-
α-Calacorene 12.4888  
Octacosane 29.3625  
Fatty acids
Oodecanoic acid 14.0232  
n-Hexadecanoic acid 19.4351 Palmitic acid
9, 12-0ctadecadienoic acid (Z, Z)- 21.5769 Linoleic acid
cis-13-0ctadecenoic acid 21.6267  
9,12, 15-0ctadecatrienoic acid, (Z, Z, Z)- 21.6321  
cis-13-0ctadecenoic acid 21.6355  
Octadecanoic acid 21.7428  
Eicosanoic acid 23.8517  
Esters
Isophthalic acid, di(2-methylprop-2-en-1-yl) ester 11.5878  
Myrtenyl acetate 23.3973  
Trichloroacetic acid, hexadecyl ester 24.0485  
Bis(2-ethylhexyl)phthalate 25.8520  
Oodecanoic acid, dodecyl ester 26.0201  
(−)-trans-Pinocarvyl acetate 27.9163  
Oodecanoic acid, tetradecyl ester 28.0778  
Oodecanoic acid, hexadecyl ester 30.1824