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Synthetic aroma chemicals

Pseudoionone

Also known as Citrylideneacetone, 6,10-Dimethyl-3,5,9-undecatrien-2-one, Pseudoionones

CAS 141-10-6Formula C13H20OMolar mass 192.30 g/molEC 205-457-1
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 3 suppliers listed
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Pseudoionone chemical structure, C13H20O, CAS 141-10-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
141-10-6
Formula
C13H20O
Molar mass
192.30 g/mol
EC number
205-457-1
HS code
291419
Category
Synthetic aroma chemicals

What is Pseudoionone?

Plain description, key identifiers and synonyms

Pseudoionone is a terpene ketone derived from ring cleavage of the apo carotenoid beta-ionone. It has a role as a fragrance. It is functionally related to a beta-ionone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3E,5E)-6,10-dimethylundeca-3,5,9-trien-2-one
CAS number
141-10-6 CAS number cross-checkedOther or deprecated CAS: 3548-78-5, 38237-36-4
EC number
205-457-1
Molecular formula
C13H20O
UNII
H1KUL01Y8O, Z6K5D761AV
MDL number
MFCD00015038
InChIKey
JXJIQCXXJGRKRJ-KOOBJXAQSA-N
InChI
InChI=1S/C13H20O/c1-11(2)7-5-8-12(3)9-6-10-13(4)14/h6-7,9-10H,5,8H2,1-4H3/b10-6+,12-9+
Canonical SMILES
CC(=O)C=CC=C(C)CCC=C(C)C
Isomeric SMILES
CC(=CCC/C(=C/C=C/C(=O)C)/C)C

Synonyms

  • Citrylideneacetone
  • 6,10-Dimethyl-3,5,9-undecatrien-2-one
  • Pseudoionones
  • psi-Ionone
  • 3,5,9-Undecatrien-2-one, 6,10-dimethyl-
  • 6,10-Dimethylundeca-3,5,9-trien-2-one
  • 2,6-Dimethylundeca-2,6,8-triene-10-one
  • 6,10-Dimethyl-3,5,9-undecatriene-2-one
  • pseudo-ionone
  • phi-Ionone
  • 2-Pseudoionone
  • 2-Pseudojonon
  • 2,6-Dimethylhendeca-2,6,8-trien-10-one
  • (3E,5E)-6,10-dimethylundeca-3,5,9-trien-2-one
  • trans-psi-Ionone
  • (E,E)-Pseudoionone
  • trans,trans-Pseudoionone
  • Pseudoionone, (3E,5E)-
  • 3E,5E-Pseudoionone
  • 3,5,9-Undecatrien-2-one, 6,10-dimethyl-, (E,E)-
  • 8-[N-Aziridylethylamino]-2,6-dimethyloctene-2
  • 3,5,9-Undecatrien-2-one, 6,10-dimethyl, #2
  • 3,5,9-Undecatrien-2-one, 6,10-dimethyl, #3
  • 3,5,9-Undecatrien-2-one, 6,10-dimethyl-, (3E,5E)-
  • N-[2-(1-Aziridinyl)ethyl]-3,7-dimethyl-6-octen-1-amine
Show all 33 synonyms
  • Pseudoionone,
  • Pseudo Ionone
  • Citrylideneacetone,
  • laquo Psiraquo -ionone
  • (3E,5E)-pseudoionone
  • (3E,5E)-6,10-dimethyl-2-undeca-3,5,9-trienone
  • PseudoiononeMixture of Isomers
  • (3E,5E)-6,10-Dimethyl-3,5,9-undecatrien-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
192.30 g/molcalc.
Exact mass
192.1514 Dacalc.
LogP (octanol/water)
3.82calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
5calc.
Heavy atoms
14calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.46calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (15)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

Pseudoionone suppliers

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All 3 suppliers

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Where suppliers are based

3 suppliers in 2 countries

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Pseudoionone price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Roles

  • fragrance

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: 6,10-Dimethyl-3,5,9-undecatrien-2-one (Pseudoionone), when used as a fragrance ingredient, Ref no: 433, Annex ref: II/433

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 Pseudoionone is traded under.

HS 2914.19Indicative HS code

Acyclic ketones without other oxygen function, other

World exports in 2024
$264M
+1.7% vs 2023, imports $308M
2019 to 2024
Top exporters
  1. China27.1%
  2. United States27.0%
  3. Germany10.5%
Top importers
  1. China22.8%
  2. United States13.0%
  3. India * partner reported10.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Pseudoionone, based on the data on this page

What is Pseudoionone?

Pseudoionone is a terpene ketone derived from ring cleavage of the apo carotenoid beta-ionone. It has a role as a fragrance. It is functionally related to a beta-ionone.

What is the CAS number of Pseudoionone?

The CAS registry number of Pseudoionone is 141-10-6. Other or deprecated CAS numbers: 3548-78-5, 38237-36-4.

What is the molecular formula and weight of Pseudoionone?

The molecular formula of Pseudoionone is C13H20O and its molar mass is 192.30 g/mol.

What is Pseudoionone used for?

Known uses and roles of Pseudoionone include fragrance ingredients in flavors and fragrances, aldehydes and ketones in flavors and fragrances and fragrance.

Is Pseudoionone hazardous?

Pseudoionone carries the GHS signal word "Warning". Main hazards: causes skin irritation, may cause an allergic skin reaction, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Pseudoionone?

Pseudoionone is usually classified under HS code 291419 (Acyclic ketones without other oxygen function, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Pseudoionone?

CompoundList lists 3 suppliers of Pseudoionone in United States and New Zealand. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Pseudoionone?

Suppliers quote Pseudoionone 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 Pseudoionone

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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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