Citral Dimethyl Acetal (<i>cis</i>- and <i>trans</i>- mixture) , >90.0%(GC) , 7549-37-3

Synonym(s):
3,7-Dimethyl-2,6-octadienal dimethyl acetal

CAS NO.：7549-37-3

Empirical Formula: C12H22O2

Molecular Weight: 198.3

MDL number: MFCD00008909

EINECS: 231-434-0

PRODUCT Properties

• Boiling point: 105-106 °C10 mm Hg(lit.)
• Density: 0.89 g/mL at 25 °C(lit.)
• vapor density: 6.8 (vs air)
• vapor pressure: 9 mm Hg ( 102.7 °C)
• FEMA: 2305 | CITRAL DIMETHYL ACETAL
• refractive index: n20/D 1.454(lit.)
• Flash point: 180 °F
• form: clear liquid
• color: Colorless to Almost colorless
• Odor: at 100.00 %. green floral citric lemon lime natural
• Odor Type: citrus
• Water Solubility: Almost insoluble in water
• JECFA Number: 944
• LogP: 3.76
• CAS DataBase Reference: 7549-37-3(CAS DataBase Reference)
• NIST Chemistry Reference: 3,7-Dimethyl-2,6-octadienal, dimethyl acetal(7549-37-3)
• EPA Substance Registry System: 2,6-Octadiene, 1,1-dimethoxy-3,7-dimethyl- (7549-37-3)

Description and Uses

Citral dimethyl acetal is a colorless liquid. Sp.Gr. 0.89. B.P. slightly lower than that of Citral. Almost insoluble in water, soluble in alcohol and oils.

Citral dimethyl acetal is used in perfume compositions partly as a mild-green topnote in soap fragrances, and also as a topnote modifier in delicate floral fragrances, green-citrusy types, fresh notes, etc. Used in flavor compositions mainly in Citrus types and generally in fruit flavors to introduce a natural freshness similar to that of unripe fruit or green Lemon peel, Apple peel, etc.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H227-H315-H319-H317
• Precautionary statements: P210-P261-P264-P272-P302+P352+P333+P313+P363-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501-P280
• Hazard Codes: Xi
• Risk Statements: 43
• Safety Statements: 36/37
• WGK Germany: 2
• RTECS: RG5330000
• Hazard Note: Irritant
• HS Code: 2911.00.5000
• Toxicity: Both the oral LD₅₀ value in rats and the dermal LD₅₀ value in rabbits exceeded 5 g/kg (Hart, 1971).