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4a,5-Dimethyl-3-(prop-1-en-2-yl)-1,2,3,4,4a,5,6,7-octahydronaphthalene

HCID 288227
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Basic information

CAS
4630-07-3
Standard SMILES
C=C(C)C1CCC2=CCCC(C)C2(C)C1
InChIKey
QEBNYNLSCGVZOH-UHFFFAOYSA-N
Molecular formula
C15H24
Average molar mass
204.35 g/mol
Monoisotopic mass
204.18780077

Overview

valencene has been reported in Frullania tamarisci, Zingiber montanum, and other organisms with data available.

Names & identifiers

Preferred name
4a,5-Dimethyl-3-(prop-1-en-2-yl)-1,2,3,4,4a,5,6,7-octahydronaphthalene
IUPAC
4a,5-dimethyl-3-prop-1-en-2-yl-2,3,4,5,6,7-hexahydro-1H-naphthalene
English name
Valencene
Molecular formula
C15H24
Molecular weight
204.35

Names & synonyms

4a,5-dimethyl-3-(prop-1-en-2-yl)-1,2,3,4,4a,5,6,7-octahydronaphthalene4a,5-dimethyl-3-prop-1-en-2-yl-2,3,4,5,6,7-hexahydro-1H-naphthaleneRefChem:296693Valencene (natural)Oxo-TremorineValencene 854.alpha.,9-octalin4.beta.H,11-diene4.beta.H,5.alpha.-Eremophila-1(10),11-dieneSCHEMBL25137033-Isopropenyl-4a,5-dimethyl-1,2,3,4,4a,5,6,7-octahydronaphthalene #DTXSID60859879
Show more names
Valencen(1R,7R,8aS)-1,2,3,5,6,7,8,8a-Octahydro-1,8a-dimethyl-7-(1-methylethenyl)naphthaleneFEMA 3443(+)-valencene(3R,4aS,5R)-4a,5-Dimethyl-3-(prop-1-en-2-yl)-1,2,3,4,4a,5,6,7-octahydronaphthaleneNaphthalene, 1,2,3,5,6,7,8,8a-octahydro-1,8a-dimethyl-7-(1-methylethenyl)-, (1R,7R,8aS)-VALENCENENSC 148969Valencene T
QEBNYNLSCGVZOH-UHFFFAOYSA-NNaphthalene, 1,2,3,5,6,7,8,8a-octahydro-1,8a-dimethyl-7-(1-methylethenyl)-, [1R-(1.alpha.,7.beta.,8a.alpha.)]-Naphthalene, 1,2,3,5,6,7,8,8a-octahydro-1,8a-dimethyl-7-(1-methylethenyl)-, [1S-(1.alpha.,7.alpha.,8a.alpha.)]-MFCD00036657NSC148969AKOS01595561268773-84-2VS-08621

Properties

Computed structural properties

XLogP
5.2
Topological polar surface area
0 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
0
Rotatable bonds
1
Heavy atoms
15
Formal charge
0
Complexity
297

Experimental & physicochemical properties

Density0.914-0.919
Solubility · 2 items

Insoluble in water; soluble in oils

Insoluble (in ethanol)

Boiling Point · 2 items

123.00 °C. @ 11.00 mm Hg

123 °C (11mm Hg)

Refractive Index1.498-1.508
Physical DescriptionColourless to pale yellow oily liquid

Physicochemical properties

Boiling point
274 °C · 274 °C(lit.)
Density
0.92 g/mL · 0.92 g/mL at 25 °C(lit.)
FEMA
3443 · 3443 | VALENCENE
refractive index
20 · n20/D 1.504(lit.)
FLAVIS Number
1.017 · 01.017 | Valencene
Flash point
230 °F · >230 °F
storage temp.
2 · 2-8°C

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

Safety data

wgk
3
tsca
TSCA listed
Signal word
Danger
Symbol(GHS)
GHS08
safety_code
23-24/25
Storage Class
10 - Combustible liquids
Hazard statements
H304
Hazard Classifications
Asp. Tox. 1
Precautionary statements
P301+P310-P331-P405-P501

Chemistry & industry

Pharmacology

Cellular LocationsExtracellular

Uses & manufacturing

Use ClassificationFlavoring Agents -> JECFA Flavorings Index
Applications · 5 items

Description(+)-Valencene is a sesquiterpene that has been found in C. sativa and is an aromatic component of orange essence oil. (+)-Valencene (50 μM) induces heme oxgenase-1 (HO-1) expression in macrophages and inhibits the expression of inducible nitric oxide synthase (iNOS), the production of nitric oxide (NO), and the release of high-mobility group box-1 (HMGB1) in RAW 264.7 cells stimulated with LPS. It also increases the survival rate in a mouse model of sepsis induced by cecal ligation and puncture. (+)-Valencene has been used in the synthesis of nootkatone .

OccurrenceReported found in citrus fruits, orange peel, orange juice, bitter orange peel oil, lemon peel oil, grapefruit juice, grapefruit peel oil, kumquat peel oil, leaves and stalk of celery, clove stem, Thymus vulgaris L., fresh mango, globe artichoke, cardamom, mangosteen and cocoa.

UsesValencene is a sesquiterpene and an essential oil component found in a variety of plants, and has been shown to have functional antioxidant, antiradical and antimicrobial properties.

Uses(+)-Valencene can be used as a precursor to prepare: (+)-Nootkatone (a sesquiterpene) by dark singlet oxygenation. Benzoyloxyvalencene by reacting with tert-butyl peroxy benzoate via KharaschSosnovsky allylic oxidation method. (+)-Lineariifolianone, a natural product.

General DescriptionValencene is the major sesquiterpene aroma constituent of orange peel oil. It is mainly used as a starting material to synthesize nootkatone, an important flavor compound of grapefruit.

Preparation methods

Related reactions

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Compound notes

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Database identifiers

CAS
4630-07-3
PubChem CID
288227
DTXSID
DTXSID60859879
Nikkaji
J2.381.034D
solubility
Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
form
Oil
color
Colourless
Specific Gravity
0.92 · 0.92
Odor
10 % · at 10.00 % in dipropylene glycol. sweet fresh citrus grapefruit woody orange asprin dry green oily
Odor Type
citrus
biological source
oranges
optical activity
22 · [α]22/D +90°, neat
Hydrolytic Sensitivity
1 · 1: no significant reaction with aqueous systems
JECFA Number
1337 · 1337
BRN
3539153 · 3539153
Henry's Law Constant
3.2 · 3.2×10-4 mol/(m3Pa) at 25℃, Copolovici and Niinemets (2015)
Stability
Light Sensitive
Major Application
cleaning productscosmeticsflavors and fragrancesfood and beveragespersonal care
Cosmetics Ingredients Functions
SKIN CONDITIONINGPERFUMINGSKIN PROTECTING
InChI
1S/C15H24/c1-11(2)13-8-9-14-7-5-6-12(3)15(14,4)10-13/h7,12-13H,1,5-6,8-10H2,2-4H3/t12-,13-,15+/m1/s1
InChIKey
QEBNYNLSCGVZOH-NFAWXSAZSA-N
SMILES
C[C@@H]1CCC=C2CC[C@H](C[C@@]12C)C(C)=C
LogP
6.29 · 6.29
Substances Added to Food (formerly EAFUS)
VALENCENE
FDA UNII
96 H21P91IG · 96H21P91IG
EPA Substance Registry System
1 · Naphthalene, 1,2,3,5,6,7,8,8a-octahydro-1,8a-dimethyl-7-(1-methylethenyl)-, (1R,7R,8aS)- (4630-07-3)
UNSPSC Code
85151701 · 85151701
NACRES
24 · NA.24
Symbol(GHS)
8 · GHS08
Signal word
Danger
Hazard statements
304 · H304
Precautionary statements
301 · P301+P310-P331-P405-P501
Safety Statements
23 · 23-24/25
WGK Germany
3 · 3
TSCA
TSCA listed
Storage Class
10 · 10 - Combustible liquids
Hazard Classifications
1 · Asp. Tox. 1

PreparationBy a Wolf–Kishner reduction of nootkatone.

Upstream & downstream products

Upstream raw materials

NOOTKATONE(SG)

Downstream products

NOOTKATONE

Additional notes

DefinitionChEBI: A carbobicyclic compound and sesquiterpene that is 1,2,3,4,4a,5,6,7-octahydronaphthalene which is substituted a prop-1-en-2-yl group at position 3 and by methyl groups at positions 4a and 5 (the 3R,4aS,5R diastereoisomer).