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Synthetic aroma chemicals

2-Decalone, trans-

Also known as trans-2-Decalone, 2(1H)-Naphthalenone, octahydro-, (4aR,8aR)-rel-, DL-trans-2-Decalone

CAS 16021-08-2Formula C10H16OMolar mass 152.24 g/molEC 240-156-9
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2-Decalone, trans- chemical structure, C10H16O, CAS 16021-08-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
16021-08-2
Formula
C10H16O
Molar mass
152.24 g/mol
EC number
240-156-9
HS code
291429
Category
Synthetic aroma chemicals

What is 2-Decalone, trans-?

Plain description, key identifiers and synonyms

2-Decalone, trans- is a chemical substance with the molecular formula C10H16O and a molar mass of 152.24 g/mol. Its CAS registry number is 16021-08-2. The IUPAC name is (4aR,8aR)-3,4,4a,5,6,7,8,8a-octahydro-1H-naphthalen-2-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(4aR,8aR)-3,4,4a,5,6,7,8,8a-octahydro-1H-naphthalen-2-one
CAS number
16021-08-2 CAS number cross-checked
EC number
240-156-9
Molecular formula
C10H16O
UNII
U64US27J7P
INCI name
TRANS-OCTAHYDRONAPHTHALENONE
InChIKey
LGVJRKCQQHOWAU-RKDXNWHRSA-N
InChI
InChI=1S/C10H16O/c11-10-6-5-8-3-1-2-4-9(8)7-10/h8-9H,1-7H2/t8-,9-/m1/s1
Canonical SMILES
O=C1CCC2CCCCC2C1
Isomeric SMILES
C1CC[C@@H]2CC(=O)CC[C@H]2C1

Synonyms

  • trans-2-Decalone
  • 2(1H)-Naphthalenone, octahydro-, (4aR,8aR)-rel-
  • DL-trans-2-Decalone
  • trans-octahydro-2(1h)-naphthalenone
  • (4A.alpha.,8a.beta.)-2-decalone
  • (+-)-trans-2-Decalone
  • (4Aalpha,8abeta)-2-decalone
  • 2(1H)-Naphthalenone, octahydro-, trans-(8CI)
  • 2(1H)-Naphthalenone, octahydro-, trans-(8CI)(9CI)
  • trans-Octahydronaphthalene-2(1H)-one
  • (4aR,8aR)-3,4,4a,5,6,7,8,8a-octahydro-1H-naphthalen-2-one
  • (4aR,8aR)-2-Decalone
  • (4ar,8ar)-octahydronaphthalen-2(1h)-one
  • (+/-)-Trans-2-decalone
  • trans-octahydro-(1H)-naphthalen-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)
2.55calc.
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=C1CCC2CCCCC2C1

O=C1CCC2CCCCC2C1

2 rings, 11 atoms, the 2-Decalone ring system.

67 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.

2-Decalone, trans- suppliers

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2-Decalone, trans- 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 TRANS-OCTAHYDRONAPHTHALENONE(perfuming)

Functional uses

  • 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: Inactive 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 2-Decalone, trans- 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 2-Decalone, trans- is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2-Decalone, trans-, based on the data on this page

What is 2-Decalone, trans-?

2-Decalone, trans- is a chemical substance with the molecular formula C10H16O and a molar mass of 152.24 g/mol. Its CAS registry number is 16021-08-2. The IUPAC name is (4aR,8aR)-3,4,4a,5,6,7,8,8a-octahydro-1H-naphthalen-2-one.

What is the CAS number of 2-Decalone, trans-?

The CAS registry number of 2-Decalone, trans- is 16021-08-2.

What is the molecular formula and weight of 2-Decalone, trans-?

The molecular formula of 2-Decalone, trans- is C10H16O and its molar mass is 152.24 g/mol.

What is 2-Decalone, trans- used for?

Known uses and roles of 2-Decalone, trans- include fragrance ingredients in cosmetics and personal care, fragrance ingredients in flavors and fragrances, aldehydes and ketones in flavors and fragrances, perfuming and fragrance.

Is 2-Decalone, trans- hazardous?

No GHS hazard classification for 2-Decalone, trans- 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 2-Decalone, trans-?

2-Decalone, trans- 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 2-Decalone, trans-?

Post a free request on CompoundList and suppliers of 2-Decalone, trans- will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 2-Decalone, trans-?

Suppliers quote 2-Decalone, trans- 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

Practical guides that help when you source, ship or handle 2-Decalone, trans-

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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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