Citral CAS#5392-40-5

CAS Number: 5392-40-5
Chemical Formula: C10H16O
Synonyms:

2,6-Octadienal, 3,7-dimethyl-
2,6-Octadienal,3,7-dimethyl-
3,7-Dimethyl-1,2,6-octadienal

Appearance: Colorless Liquid

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Citral CAS#5392-40-5

Colorless or slightly yellow liquid; strong lemon flavor; no optical rotation; boiling point 228 °C; flash point 92 °C;
There are cis and trans two isomers. With sodium bisulfite treatment, cis isomer solubility is minimal, while the trans isomer solubility is very large, so the two isomers can be separated.
Cis citral: relative density (d20) 0.8898, refractive index (nD20) 1.4891, boiling point 118~119℃ (2666Pa).
Trans citral: relative density (d20) 0.8888, refractive index (nD20) 1.4891, boiling point 117~118℃ (2666Pa).
Soluble in non-volatile oils, volatile oils, propylene glycol and ethanol; insoluble in glycerol and water; unstable in alkaline and strong acids
Natural products present in lemon grass oil (70% to 80%), litsea cubeba oil (about 70%), lemon oil, white lemon oil, citrus leaf oil and so on.

Citral Chemical Properties

Melting point	<-10°C
Boiling point	229 °C (lit.)
density	0.888 g/mL at 25 °C (lit.)
vapor density	5 (vs air)
vapor pressure	0.2 mm Hg ( 200 °C)
refractive index	n20/D 1.488(lit.)
FEMA	2303 \| CITRAL
Fp	215 °F
storage temp.	2-8°C
solubility	0.42g/l
form	Liquid
color	colorless to light yellow
Odor	at 100.00 %. sweet lemon citral
Odor Type	citrus
explosive limit	4.3-9.9%(V)
biological source	synthetic
Water Solubility	PRACTICALLY INSOLUBLE
Merck	14,2322
JECFA Number	1225
BRN	1721871
Exposure limits	ACGIH: TWA 5 ppm (Skin)
Stability:	Stable. but readily isomerizes. Incompatible with alkalies, strong oxidizing agents, strong acids. Combustible. Air and light sensitive.
Major Application	flavors and fragrances
Cosmetics Ingredients Functions	FLAVOURING FRAGRANCE PERFUMING
InChI	1S/C10H16O/c1-9(2)5-4-6-10(3)7-8-11/h5,7-8H,4,6H2,1-3H3
InChIKey	WTEVQBCEXWBHNA-UHFFFAOYSA-N
SMILES	[H]C(=O)C=C(C)CC\C=C(\C)C
LogP	2.76 at 25℃
CAS DataBase Reference	5392-40-5(CAS DataBase Reference)
NIST Chemistry Reference	Citral(5392-40-5)
EPA Substance Registry System	Citral (5392-40-5)

Safety Information

Hazard Codes	Xi
Risk Statements	38-43
Safety Statements	24/25-37
RIDADR	1760
WGK Germany	1
RTECS	RG5075000
Autoignition Temperature	225 °C
TSCA	TSCA listed
HS Code	2912 19 00
HazardClass	8
PackingGroup	III
Storage Class	10 - Combustible liquids
Hazard Classifications	Eye Irrit. 2 Skin Irrit. 2 Skin Sens. 1
Hazardous Substances Data	5392-40-5(Hazardous Substances Data)
Toxicity	LD50 orally in rats: 4.96 g/kg (Opdyke)

Product Application of Citral CAS#5392-40-5

Citral is an artificial flavor permitted to use in China, which can be used to prepare strawberries, apples, apricots, sweet orange, lemon and other fruit-based flavors. According to normal production needs, the citrals amount used in chewing gums is 1.70mg/kg; baked goods 43mg/kg; candy 41mg/kg; cold drinks 23mg/kg; soft drinks 9.2mg/kg.
It is also widely used in dishwashing detergents and the flavoring agents of soap and toilet water. Citral can be used as the raw material to synthesize ionone, methyl ionone and dihydro damascene. As organic raw material, it can also be reduced to generate citronellol, nerol alcohol and geraniol, and be converted into lemonile. In the pharmaceutical industry, it can be used for the manufacture of vitamin A and E, and also as the raw material of chlorophyll.

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