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Synthetic aroma chemicals

(+)-Fenchone

Also known as (1S,4R)-1,3,3-trimethylbicyclo[2.2.1]heptan-2-one, (1S)-(+)-fenchone, d-1,3,3-Trimethyl-2-norbornanone

CAS 4695-62-9Formula C10H16OMolar mass 152.24 g/molEC 225-160-0
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(+)-Fenchone chemical structure, C10H16O, CAS 4695-62-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4695-62-9
Formula
C10H16O
Molar mass
152.24 g/mol
EC number
225-160-0
HS code
291429
Category
Synthetic aroma chemicals

What is (+)-Fenchone?

Plain description, key identifiers and synonyms

(1S,4R)-fenchone is a fenchone that has 1S,4R stereochemistry. A colourless, oily liquid found in fennel oil, it is used in perfumery and as flavour in foods. It is an enantiomer of a (1R,4S)-fenchone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1S,4R)-1,3,3-trimethylbicyclo[2.2.1]heptan-2-one
CAS number
4695-62-9 CAS number cross-checked
EC number
225-160-0
Molecular formula
C10H16O
UNII
S436YKU51N
MDL number
MFCD00070689
INCI name
TRIMETHYLBICYCLO-2-HEPTANONE
InChIKey
LHXDLQBQYFFVNW-XCBNKYQSSA-N
InChI
InChI=1S/C10H16O/c1-9(2)7-4-5-10(3,6-7)8(9)11/h7H,4-6H2,1-3H3/t7-,10+/m1/s1
Canonical SMILES
CC12CCC(C1)C(C)(C)C2=O
Isomeric SMILES
C[C@]12CC[C@H](C1)C(C2=O)(C)C

Synonyms

  • (1S,4R)-1,3,3-trimethylbicyclo[2.2.1]heptan-2-one
  • (1S)-(+)-fenchone
  • d-1,3,3-Trimethyl-2-norbornanone
  • Fenchone, D-
  • d-1,3,3-Trimethyl-2-norcamphanone
  • Fenchone, (+)-
  • 2-Norbornanone, 1,3,3-trimethyl-, (1S,4R)-(+)-
  • (1S,4R)-1,3,3-trimethylbicyclo(2.2.1)heptan-2-one
  • 1,3,3-Trimethyl-2-norbornanone, D-
  • 1,3,3-Trimethyl-2-norcamphanone, D-
  • 2-Norbornanone, 1,3,3-trimethyl-, (1R,4S)-(+)-
  • (4S)-2,2,4-trimethylbicyclo(2.2.1)heptan-3-one
  • (+)-1,3,3-Trimethyl-2-norbornanone
  • (+)-Fenchone, 98%
  • D-Fenchone, 77%
  • fenchone, (1S)-isomer
  • D-Fenchone
  • (1S,4R)-fenchone
  • (1S)-fenchone
  • (+)-2-fenchanone
  • (+)-fenchan-2-one
  • (1S,4R)-2-fenchanone
  • (1S,4R)-fenchan-2-one
  • (1S,4R)-(+)-fenchone
  • (1S,4R)-(+)-2-fenchanone
Show all 34 synonyms
  • (1S,4R)-(+)-fenchan-2-one
  • Bicyclo[2.2.1]heptan-2-one, 1,3,3-trimethyl-, (1S,4R)-
  • (1S)-1,3,3-Trimethylbicyclo(2.2.1)heptan-2-one
  • 2-Fenchanone, D-
  • d-Fenchone (natural)
  • Bicyclo(2.2.1)heptan-2-one, 1,3,3-trimethyl-, (1S,4R)-
  • (1s)-1,3,3-trimethyl-norbornan-2-one
  • Fenchone
  • (1R)-1,3,3-Trimethylbicyclo(2.2.1)heptan-2-one

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
152.24 g/molcalc.
Exact mass
152.1201 Dacalc.
LogP (octanol/water)
2.4calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
11calc.
Rings
2calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.9calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1CC2CCC1C2

O=C1CC2CCC1C2

2 rings, 8 atoms, the Bicyclo(2.2.1)heptan-2-one ring system.

461 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

(+)-Fenchone suppliers

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All 3 suppliers

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Where suppliers are based

3 suppliers in 3 countries

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(+)-Fenchone price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Cosmetic ingredient, INCI name TRIMETHYLBICYCLO-2-HEPTANONE(perfuming)

Functional uses

  • Flavouring and nutrient
  • Fragrance

Cosmetic functions

  • Perfuming

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code (+)-Fenchone is traded under.

HS 2914.29Indicative HS code

Cyclanic, cyclenic or cycloterpenic ketones without other oxygen function, other

World exports in 2024
$1B
+6.6% vs 2023, imports $980M
2019 to 2024
Top exporters
  1. China32.5%
  2. India * partner reported12.9%
  3. Germany12.3%
Top importers
  1. United States15.7%
  2. Japan8.7%
  3. Germany8.7%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for (+)-Fenchone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about (+)-Fenchone, based on the data on this page

What is (+)-Fenchone?

(1S,4R)-fenchone is a fenchone that has 1S,4R stereochemistry. A colourless, oily liquid found in fennel oil, it is used in perfumery and as flavour in foods. It is an enantiomer of a (1R,4S)-fenchone.

What is the CAS number of (+)-Fenchone?

The CAS registry number of (+)-Fenchone is 4695-62-9.

What is the molecular formula and weight of (+)-Fenchone?

The molecular formula of (+)-Fenchone is C10H16O and its molar mass is 152.24 g/mol.

What is (+)-Fenchone used for?

Known uses and roles of (+)-Fenchone include fragrance ingredients in cosmetics and personal care, fragrance ingredients in flavors and fragrances, terpenes and terpenoids in flavors and fragrances, aldehydes and ketones in flavors and fragrances, perfuming and 2 more.

Is (+)-Fenchone hazardous?

No GHS hazard classification for (+)-Fenchone is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of (+)-Fenchone?

(+)-Fenchone is usually classified under HS code 291429 (Cyclanic, cyclenic or cycloterpenic ketones without other oxygen function, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy (+)-Fenchone?

CompoundList lists 3 suppliers of (+)-Fenchone in China, Germany and India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy (+)-Fenchone in India?

1 supplier in India list (+)-Fenchone on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of (+)-Fenchone?

Suppliers quote (+)-Fenchone on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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