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citral

Structure via PubChem · Public domain (PubChem)

EntityQ60176530· pop 32· linked from 137 articles

Citral is an acyclic monoterpene aldehyde. Being a monoterpene, it is made of two isoprene units. Citral is a collective term which covers two geometric isomers that have their own separate names; the E-isomer is named geranial (trans-citral; α-citral) or citral A. The Z-isomer is named neral (cis-citral; β-citral) or citral B. These stereoisomers occur as a mixture, often not in equal proportions; e.g. in essential oil of Australian ginger, the neral to geranial ratio is 0.61.

Chemical data

Formula
C10H16O
Molecular weight
152.23 g/mol
IUPAC name
3,7-dimethylocta-2,6-dienal
SMILES
CC(=CCCC(=CC=O)C)C
InChIKey
WTEVQBCEXWBHNA-UHFFFAOYSA-N
XLogP
3
Polar surface area
17.1 Ų
H-bond donors
0
H-bond acceptors
1
Formal charge
0

via PubChem

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Encyclopedic overview

7 sections
Contents
  • Natural Occurrence
  • Uses
  • Fragrances
  • Food additive
  • See also
  • References
  • External links

Citral is an acyclic monoterpene aldehyde. Being a monoterpene, it is made of two isoprene units. Citral is a collective term which covers two geometric isomers that have their own separate names; the E-isomer is named geranial (trans-citral; α-citral) or citral A. The Z-isomer is named neral (cis-citral; β-citral) or citral B. These stereoisomers occur as a mixture, often not in equal proportions; e.g. in essential oil of Australian ginger, the neral to geranial ratio is 0.61.

== Natural Occurrence == Citral is present in the volatile oils of several plants:

Excerpted from Wikipedia’s “citral” article, available under the CC BY-SA 4.0 licence.