Citral

Description

Strong, lemon-like, found on Litsea cubeba. Widely used in many types of accords, mainly in citrus fragrances. Gives freshness and lift.

General Information

Category	Aromatic Compound
IUPAC Name	3,7-dimethylocta-2,6-dienal
CAS Number	5392-40-5
Molecular Weight	152.23 g/mol
Canonical SMILES	CC(=CCCC(=CC=O)C)C

Organoleptic Properties

Odor Family	Citrus
Odor Strength	1 2 3 4 5
Odor Description	Fresh, Green, Juicy, Lemon, Lemon Peel, Sharp, Sweet, Tart
Substantivity	12 hours at 100%

Physical Properties

Appearance	Colorless to pale yellow clear liquid (est)
Specific Gravity	0.885 to 0.891 @ 25 °C.
Pounds per Gallon	7.364 to 7.414
Refractive Index	1.486 to 1.49 @ 20 °C.
Vapor Pressure	0.2 mmHg @ 20 °C.
Vapor Density	5.2 ( Air = 1 )
Boiling Point	228 to 229 °C. @ 760 mm Hg
Flash Point	195 °F. TCC ( 90 °C. )
XLogP	3
Acid Value	3 max. KOH/g
Shelf Life	24 months if stored properly
Storage	Store in cool, dry place in tightly sealed containers, protected from heat and light.

IFRA

Standard

https://ifrafragrance.org/standards/IFRA_STD_021.pdf

Category

Flavor and fragrance agents

Critical Effect

Sensitization

Restrictions

Usage limits in the finished product

Cat. 1Category 1:	0.11 %
Cat. 2Category 2:	0.032 %
Cat. 3Category 3:	0.1 %
Cat. 4Category 4:	0.6 %
Cat. 5ACategory 5A:	0.15 %
Cat. 5BCategory 5B:	0.15 %
Cat. 5CCategory 5C:	0.15 %
Cat. 5DCategory 5D:	0.051 %
Cat. 6Category 6:	0.35 %

Cat. 7ACategory 7A:	0.2 %
Cat. 7BCategory 7B:	0.2 %
Cat. 8Category 8:	0.051 %
Cat. 9Category 9:	1.2 %
Cat. 10ACategory 10A:	1.2 %
Cat. 10BCategory 10B:	4.2 %
Cat. 11ACategory 11A:	0.051 %
Cat. 11BCategory 11B:	0.051 %
Cat. 12Category 12:	100%

Safety Information

Pictograms
Hazard Statement	H315 - Causes skin irritation H317 - May cause an allergic skin reaction
Precautionary Statement	P261 - Avoid breathing dust/fumes/gas/mist/vapours/spray P264 - Wash … thoroughly after handling P272 - Contaminated work clothing should not be allowed out of the workplace P280 - Wear protective gloves/protective clothing/eye protection/face protection P302 + P352 - IF ON SKIN: Wash with plenty of water/… P333 + P313 - If skin irritation or a rash occurs: Get medical advice/attention P362 - Take off contaminated clothing P501 - Dispose of contents/container in accordance with local/regional/national/international regulations.
R-phrases	R38 - Irritating to skin R43 - May cause sensitisation by skin contact
S-phrases	S02 - Keep out of the reach of children S24/25 - Avoid contact with skin and eyes S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice S37/39 - Wear suitable gloves and eye/face protection
Europe Standard Hazard	Xi - Irritant

References

TGSC	http://www.thegoodscentscompany.com/data/rw1003432.html
PubChem	https://pubchem.ncbi.nlm.nih.gov/compound/8843