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Synthetic aroma chemicals

alpha-Sinensal

Also known as (E,E,E)-2,6,10-Trimethyldodeca-2,6,9,11-tetraen-1-al, Sinensal, alpha-, 2,6,9,11-Dodecatetraenal, 2,6,10-trimethyl-, (2E,6E,9E)-

CAS 17909-77-2Formula C15H22OMolar mass 218.34 g/molEC 241-854-6
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alpha-Sinensal chemical structure, C15H22O, CAS 17909-77-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
17909-77-2
Formula
C15H22O
Molar mass
218.34 g/mol
EC number
241-854-6
HS code
291219
Category
Synthetic aroma chemicals

What is alpha-Sinensal?

Plain description, key identifiers and synonyms

Alpha-Sinensal is a sesquiterpenoid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2E,6E,9E)-2,6,10-trimethyldodeca-2,6,9,11-tetraenal
CAS number
17909-77-2 CAS number cross-checkedOther or deprecated CAS: 4955-32-2
EC number
241-854-6
Molecular formula
C15H22O
UNII
5SEZ02PE9O
INCI name
TRANS-TRIMETHYLDODECATETRAENAL
InChIKey
PFSTYGCNVAVZBK-JQGMZEBDSA-N
InChI
InChI=1S/C15H22O/c1-5-13(2)8-6-9-14(3)10-7-11-15(4)12-16/h5,8-9,11-12H,1,6-7,10H2,2-4H3/b13-8+,14-9+,15-11+
Canonical SMILES
C=CC(C)=CCC=C(C)CCC=C(C)C=O
Isomeric SMILES
C/C(=C\C/C=C(\C)/C=C)/CC/C=C(\C)/C=O

Synonyms

  • (E,E,E)-2,6,10-Trimethyldodeca-2,6,9,11-tetraen-1-al
  • Sinensal, alpha-
  • 2,6,9,11-Dodecatetraenal, 2,6,10-trimethyl-, (2E,6E,9E)-
  • 2,6,9,11-Dodecatetraenal, 2,6,10-trimethyl-, (E,E,E)-
  • (2E,6E,9E)-2,6,10-trimethyldodeca-2,6,9,11-tetraenal
  • (2E,6E,9E)-2,6,10-Trimethyl-2,6,9,11-dodecatetraenal
  • sinensal (alpha-)
  • 2,6,10-trimethyldodeca-2,6,9,11-tetraenal
  • alpha-Sinensal (Technical Grade)
  • 2,6,10-Trimethyl-(E,E,E)-2,6,9,11-Dodecatetraenal
  • (2E,6E,9E)-2,6,10-trimethyl-dodeca-2,6,9,11-tetraenal
  • 2,6,10-Trimethyl-(2E,6E,9E)-2,6,9,11-Dodecatetraenal

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
218.34 g/molcalc.
Exact mass
218.1671 Dacalc.
LogP (octanol/water)
4.38calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
7calc.
Heavy atoms
16calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.4calc.
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

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.

alpha-Sinensal suppliers

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alpha-Sinensal 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-TRIMETHYLDODECATETRAENAL(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 alpha-Sinensal is traded under.

HS 2912.19Indicative HS code

Acyclic aldehydes without other oxygen function, other

World exports in 2024
$679M
+4.8% vs 2023, imports $743M
2019 to 2024
Top exporters
  1. Germany22.0%
  2. China21.2%
  3. United States18.5%
Top importers
  1. United States13.1%
  2. Germany9.6%
  3. Belgium8.2%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about alpha-Sinensal, based on the data on this page

What is alpha-Sinensal?

Alpha-Sinensal is a sesquiterpenoid.

What is the CAS number of alpha-Sinensal?

The CAS registry number of alpha-Sinensal is 17909-77-2. Other or deprecated CAS numbers: 4955-32-2.

What is the molecular formula and weight of alpha-Sinensal?

The molecular formula of alpha-Sinensal is C15H22O and its molar mass is 218.34 g/mol.

What is alpha-Sinensal used for?

Known uses and roles of alpha-Sinensal include fragrance ingredients in cosmetics and personal care, fragrance ingredients in flavors and fragrances, aldehydes and ketones in flavors and fragrances, perfuming, flavouring and nutrient and 1 more.

Is alpha-Sinensal hazardous?

No GHS hazard classification for alpha-Sinensal 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 alpha-Sinensal?

alpha-Sinensal is usually classified under HS code 291219 (Acyclic aldehydes without other oxygen function, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy alpha-Sinensal?

Post a free request on CompoundList and suppliers of alpha-Sinensal will send you quotes. Your contact details stay private until you accept a quote.

What is the price of alpha-Sinensal?

Suppliers quote alpha-Sinensal 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 alpha-Sinensal

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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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