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SESQUITERPENE

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Sesquiterpene having three isoprene units is a kind of terpene , whose general formula is CH, most of them are in line with isoprene rule. Sesquiterpene compounds widely distributed, most abundant in Magnoliales, rue mesh, cornales and asterales (asterales) plants. Generally speaking, sesquiterpene presents in volatile oil in the form of oxygen-containing derivativesthe , such as alcohols, ketones and lactones, the main composition of volatile oil in the high-boiling part , have a strong aroma and biological activity, are pharmaceutical, food, cosmetics important raw material for industry.

Sesquiterpene compounds, in terms of the number or type of structure from the point of view of the skeleton are the largest one in terpenoids. Sesquiterpene are classified by the number of  carbon ring on their structure , for example, acyclic, monocyclic, bicyclic, tricyclic and tetracyclic and so on. Also classified according to the size of the ring, such as five, six, seven till eleven membered ring. If it is classified according to containing group in its structure, it is easy to recognize their physicochemical properties and physiological activities, such as sesquiterpene alcohols, aldehydes, lactones and so on.

The following are some common sesquiterpene compound:
(1) Farnesol ,an open-chain sesquiterpene, presents in aromatic plants volatile oil such as lemongrass, orange blossom, rose and others. Farnesol as a colorless oily liquid, is a valuable spice. having insect juvenile hormone activity. Once the amount of the insect juvenile hormone excess, it will inhibit the insect metamorphosis and maturity.
(2)Germacrone, Aka Big geranylflavanone ketone, presents in the volatile oil of Xing'an azalea (rhododendron) leaves, is a ten-member ring monocyclic sesquiterpene. Rhododendron volatile oil has the effect of treating cough, phlegm, asthma and are useful for the treatment of chronic bronchitis, cuckoo ketone ,whose melting point is 56 ~ 57 ℃,is the main component .
(3) Gguaiazulene. a sesquiterpene ingredients, presents in the tribulus plants guaiac volatile oil, volatile oil Geranium.
guaiazulene. a blue needle crystallization,whose melting point is 31 ℃, has anti-inflammatory effect, promoting wound healing. It is one of the main components of  domestic burn ointment.

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Structure:
Chemical Name:
15-DihydroepioxylubiMin
CAS:
129214-59-1
MF:
C15H26O3
Structure:
Chemical Name:
Chlorantholide A
CAS:
1372558-33-2
MF:
C15H16O3
Structure:
Chemical Name:
Alpiniaterpene A
CAS:
1448667-05-7
MF:
C16H22O4
Structure:
Chemical Name:
Shizukanolide C
CAS:
78749-47-0
MF:
C15H18O3
Structure:
Chemical Name:
Sarcandrolide D
CAS:
1207185-03-2
MF:
C37H42O12
Structure:
Chemical Name:
Sugetriol 6,9-diacetate
CAS:
17928-63-1
MF:
C19H28O5
Structure:
Chemical Name:
CryptoMeridiol 11-rhaMnoside
CAS:
349112-30-7
MF:
C21H38O6
Structure:
Chemical Name:
EudesM-4(15)-ene-3α,11-diol
CAS:
113773-90-3
MF:
C15H26O2
Structure:
Chemical Name:
Guajadial B
CAS:
1414455-03-0
MF:
C30H34O5
Structure:
Chemical Name:
ChloraMultilide B
CAS:
1000995-47-0
MF:
C39H42O14
Structure:
Chemical Name:
4-Hydroxy-1,10-secocadin-5-ene-1,10-dione
CAS:
226904-40-1
MF:
C15H24O3
Structure:
Chemical Name:
Tectoroside
CAS:
124960-89-0
MF:
C30H36O12
Structure:
Chemical Name:
4'-Hydroxypiptocarphin A
CAS:
103994-39-4
MF:
C21H26O10
Structure:
Chemical Name:
8α-Hydroxyhirsutinolide
CAS:
1394156-45-6
MF:
C15H20O6
Structure:
Chemical Name:
3-Acetoxy-4-cadinen-8-one
CAS:
923950-05-4
MF:
C17H26O3
Structure:
Chemical Name:
Euscaphin B
CAS:
956869-95-7
MF:
C14H26O4
Structure:
Chemical Name:
Psidial A
CAS:
1207181-35-8
MF:
C30H34O5
Structure:
Chemical Name:
9-Oxonerolidol
CAS:
58865-88-6
MF:
C15H24O2
Structure:
Chemical Name:
Fukinolide
CAS:
18455-98-6
MF:
C22H30O6
Structure:
Chemical Name:
(2Z,4E)-3-Methyl-5-[(1S)-1α-hydroxy-2,6-dimethyl-2α,6α-(epoxymethano)-4β-hydroxycyclohexane-1-yl]-2,4-pentadienoic acid
CAS:
41756-77-8
MF:
C15H22O5
Structure:
Chemical Name:
4(15),11-Oppositadien-1-ol
CAS:
70389-96-7
MF:
C15H24O
Structure:
Chemical Name:
Arteannuin A
CAS:
82442-48-6
MF:
C13H18O2
Structure:
Chemical Name:
Onitin 2'-O-glucoside
CAS:
76947-60-9
MF:
C21H30O8
Structure:
Chemical Name:
cis-3,4-Dihydroxy-β-ionone
CAS:
875666-39-0
MF:
C13H20O3
Structure:
Chemical Name:
1β-Hydroxy-β-eudesMol
CAS:
83217-89-4
MF:
C15H26O2
Structure:
Chemical Name:
Norpterosin B
CAS:
1226892-20-1
MF:
C13H16O2
Structure:
Chemical Name:
8α-(2-Methylacryloyloxy)- 1-O-Methylhirsutinolide 13-O-acetate
CAS:
883872-71-7
MF:
C22H28O8
Structure:
Chemical Name:
Breyniaionoside A
CAS:
823182-23-6
MF:
C19H32O9
Structure:
Chemical Name:
ChloraMultilide D
CAS:
1000995-49-2
MF:
C35H40O11
Structure:
Chemical Name:
Stachybotrolide
CAS:
149691-31-6
MF:
C23H30O5
Structure:
Chemical Name:
Vernolide B
CAS:
618860-58-5
MF:
C23H30O8
Structure:
Chemical Name:
4,5-Epoxyartemisinic acid
CAS:
92466-31-4
MF:
C15H22O3
Structure:
Chemical Name:
10-O-AcetylisocalaMendiol
CAS:
1432064-69-1
MF:
C17H28O3
Structure:
Chemical Name:
Fuegin
CAS:
6750-10-3
MF:
C15H22O4
Structure:
Chemical Name:
MegastigM-7-ene-3,5,6,9-tetraol
CAS:
680617-50-9
MF:
C13H24O4
Structure:
Chemical Name:
Chlorantholide B
CAS:
1372558-34-3
MF:
C15H18O3
Structure:
Chemical Name:
Psiguadial D
CAS:
1402066-95-8
MF:
C30H34O5
Structure:
Chemical Name:
3-EudesMene-1β,11-diol
CAS:
658062-22-7
MF:
C15H26O2
Structure:
Chemical Name:
8-Epicrepiside E
CAS:
93395-30-3
MF:
C21H28O9