Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-19 04:55:43 UTC
Update Date2024-10-06 19:05:59 UTC
Metabolite IDMMDBc0033609
Metabolite Identification
Common NameCitral
DescriptionCitral, also known as geranial, 3,7-dimethyl-2,6-octadienal, or lemonal, belongs to the class of organic compounds known as acyclic monoterpenoids. These are monoterpenes that do not contain a cycle. Thus, citral is considered to be an isoprenoid lipid. Two different isomers of 3,7-dimethyl-2,6-octadienal exist. The E-isomer or trans-isomer is known as citral or citral A. The Z-isomer or cis-isomer is known as neral or citral B. 3,7-dimethyl-2,6-octadienal is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Citral is present in the oils of several plants, including lemon myrtle (90-98%), Litsea citrata (90%), Litsea cubeba, lemongrass (65-80%), lemon tea-tree (70-80%), Ocimum gratissimum, Lindera citriodora, Calypranthes parriculata, petitgrain, lemon verbena, lemon ironbark, lemon balm, lime, lemon and orange. Citral has also been reported to be found in Cannabis sativa (PMID:6991645 , 26657499 ). Citral has a strong lemon (citrus) odor. Neral's lemon odor is less intense, but sweeter. Citral is therefore an aroma compound used in perfumery for its citrus effect. Citral is also used as a flavor and for fortifying lemon oil. It has strong antimicrobial qualities (PMID:28974979 ) and pheromonal effects in nematodes and insects (PMID:26973536 ). Citral is used in the synthesis of vitamin A, lycopene, ionone, and methylionone (a compound used to mask the smell of smoke).
Structure
Synonyms
ValueSource
(2E)-GeranialChEBI
(e)-CitralChEBI
(e)-GeranialChEBI
alpha-CitralChEBI
Citral aChEBI
LemonalChEBI
trans-CitralChEBI
a-CitralGenerator
Α-citralGenerator
(2E)-3,7-Dimethyl-2,6-octadienalHMDB
(e)-3,7-Dimethyl-2,6-octadienalHMDB
(e)-3,7-Dimethylocta-2,6-dienalHMDB
3,7-Dimethyl-(2E)-2,6-octadienalHMDB
3,7-Dimethyl-(e)-2,6-octadienalHMDB
3,7-Dimethyl-trans-2,6-octadienalHMDB
alpha -CitralHMDB
beta-GeranialHMDB
Citral-aHMDB
GenanialHMDB
GeranalHMDB
trans-3,7-Dimethyl-2,6-octadienalHMDB
(Z)-CitralMeSH, HMDB
CitralMeSH, HMDB
(2E)-3,7-Dimethyl-2,6-octadien-1-alHMDB
(E)-3,7-Dimethyl-2,6-octadienalHMDB
(E)-NeralHMDB
GeranaldehydeHMDB
GeranialHMDB
beta-NeralHMDB
trans-3,7-Dimethyl-2,6-octadien-1-alHMDB
trans-GeranialHMDB
β-GeranialHMDB
β-NeralHMDB
3,7-Dimethyl-2,6-octadien-1-alHMDB
3,7-Dimethyl-2,6-octadienalHMDB
Molecular FormulaC10H16O
Average Mass152.237
Monoisotopic Mass152.120115135
IUPAC Name(2E)-3,7-dimethylocta-2,6-dienal
Traditional Nameα-citral
CAS Registry Number5392-40-5
SMILES
CC(C)=CCC\C(C)=C\C=O
InChI Identifier
InChI=1S/C10H16O/c1-9(2)5-4-6-10(3)7-8-11/h5,7-8H,4,6H2,1-3H3/b10-7+
InChI KeyWTEVQBCEXWBHNA-JXMROGBWSA-N