Ethyl levulinate
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- Category :
Organic chemicals and Derivatives/Aroma compounds
- CAS NO : 539-88-8
- EC NO : 208-728-2
- Molecular Formula : C7H12O3
- Main Specifications : 99% min
- Synonyms : Ethyl 4-oxopentanoate;Ethyl 4-oxovalerate;Ethyl levulinate, (4-Ketovaleric acid ethyl ester;Levulinic acid ethyl ester);ethyl laevulate;4-Ketovaleric acid ethyl ester;Levulinic acid ethyl ester;Ethyl-4-oxovalerate:
Package: 25kg，50kg 200kg
Uses : Food flavoring and Essence and fragrance:
Molecular Structure:
Product description:
What is the chemical of Ethyl levulinate ?
Appearance: Colorless to pale yellow liquid with a slightly apple like aroma ;
Assay：99%min by GC ;
IR Identity: conform to standard ;
HNMR： conform to standard ;
carbon spectrum: conform to standard ;
Water by K. F.:0.5% max or as per the customer’s request ;
Loss on drying:0.5% max. or as per the customer’s request ;
Boiling point: At atmospheric pressure (760 mmHg): boiling point is approximately 205-206 ° C;
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Usage: Its main uses include:
Food flavoring: According to GB 2760-96 regulations, ethyl acetate is allowed to be used as a food flavoring, commonly used to impart fruity flavor to food.
Essence and fragrance: as a component of essence, it is used in cosmetics and daily chemical products to provide the flavor of "fruit", and has the function of solvent and skin conditioning.
Industrial application: As an organic synthesis intermediate, used in chemical production.
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synthetic route
Raw materials: Acetylpropionic acid (4-oxovaleric acid)+ethanol
Catalyst: concentrated sulfuric acid (or benzene/toluene as azeotropic dehydrating agent)
Reaction conditions: Heating reflux, esterification under normal or reduced pressure conditions
Reaction equation:
CH3C(O)CH2CH2COOH+CH3CH2OH?>[H2SO4][Δ]CH3C(O)CH2CH2COOCH2CH3+H2O
Post treatment: Neutralization, water washing, distillation purification to obtain high-purity product (≥ 99%)
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