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Triplal (2,4-dimethyl-3-cyclohexenecarboxaldehyde)

2,4-Dimethylcyclohex-3-ene-1-carbaldehyde

Triplal, Ligustral, Cyclal C, Vertocitral, Dimethyl tetrahydrobenzaldehyde

Cyclic aldehyde · C₉H₁₄O

Chemical structure of Triplal (2,4-dimethyl-3-cyclohexenecarboxaldehyde)
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
68039-49-6
Molecular formula
C₉H₁₄O
Molecular weight
138.21 g/mol
Origin
Synthetic
Odor family
Xanh Green
Note
Top
Aroma
Sharp green, crushed leaves and grass with a lemon rind edge.

History

The material is sold under several names: Triplal (IFF), Ligustral, Cyclal C, Vertocitral. The name Ligustral refers to privet (Ligustrum), not a source of extraction.

In perfumery

Used sparingly for green freshness in citrus, leafy and laundry fragrances.

Connections

EvokesCrushed leaves

Regulatory status

IFRA restricted
IFRA 51
Restricted by an IFRA Standard (entry "Dimethylcyclohex-3-ene-1-carbaldehyde (mixed isomers)"), current version issued at Amendment 49. Maximum levels differ across the 12 product categories.
EU CosReg
No specific entry in Annex II or III of Regulation (EC) 1223/2009.
EU allergen 2023/1545
Not on the list of fragrance allergens requiring labelling, including after Regulation (EU) 2023/1545.

Sources

  1. NCI/CADD Chemical Identifier Resolver, CAS 68039-49-6
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III