Ethyl acetoacetate
- CAS No.
- 141-97-9
- Chemical Name:
- Ethyl acetoacetate
- Synonyms
- ETHYL 3-OXOBUTANOATE;ACE;EAA;ACETOACETIC ESTER;Ethyl acetyl acetate;Ethyl acetoacetate, 99%, pure;Ethyl acetoacetate, extra pure;ETHYL ACETOACETATE, 99%ETHYL ACETOACETATE, 99%ETHYL ACETOACETATE, 99%ETHYL ACETOACETATE, 99%;FEMA 2415;3-OXOBUTYRIC ACID ETHYL ESTER
- CBNumber:
- CB0301721
- Molecular Formula:
- C6H10O3
Lewis structure
- Molecular Weight:
- 130.14
- MDL Number:
- MFCD00009199
- MOL File:
- 141-97-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | −43 °C(lit.) |
|---|---|
| Boiling point | 181 °C(lit.) |
| Density | 1.029 g/mL at 20 °C(lit.) |
| vapor density | 4.48 (vs air) |
| vapor pressure | 1 mm Hg ( 28.5 °C) |
| refractive index |
n |
| FEMA | 2415 | ETHYL ACETOACETATE |
| FLAVIS Number | 09.402 | Ethyl acetoacetate |
| Flash point | 185 °F |
| storage temp. | Store below +30°C. |
| solubility | 116 g/L (20°C) |
| pka | 11(at 25℃) |
| form | Liquid |
| color | APHA: ≤15 |
| Specific Gravity | 1.027~1.035 (20/4℃) |
| Odor | Agreeable, fruity. |
| PH | 4.0 (110g/l, H2O, 20℃) |
| Relative polarity | 0.577 |
| explosive limit | 1.0-54%(V) |
| biological source | synthetic |
| Odor Type | fruity |
| Water Solubility | 116 g/L (20 ºC) |
| Thermal Conductivity | 0.152 W/(m·K) at 25 ℃ |
| Specific Heat Capacity | Cp(liquid): 1.91 J/(g·K), at 25℃ |
| JECFA Number | 595 |
| Merck | 14,3758 |
| BRN | 385838 |
| Henry's Law Constant | 9.0×100 mol/(m3Pa) at 25℃, Brockbank (2013) |
| Dielectric constant | 15.0(Ambient) |
| Stability | Stable. Incompatible with acids, bases, oxidizing agents, reducing agents, alkali metals. Combustible. |
| Cosmetics Ingredients Functions | PERFUMING |
| InChI | 1S/C6H10O3/c1-3-9-6(8)4-5(2)7/h3-4H2,1-2H3 |
| InChIKey | XYIBRDXRRQCHLP-UHFFFAOYSA-N |
| SMILES | CCOC(=O)CC(C)=O |
| LogP | 0.8 at 20℃ |
| Surface tension | 31.93mN/m at 298.15K |
| CAS DataBase Reference | 141-97-9(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | ETHYL ACETOACETATE |
| FDA 21 CFR | 175.300 |
| EWG's Food Scores | 1 |
| FDA UNII | IZP61H3TB1 |
| NIST Chemistry Reference | Butanoic acid, 3-oxo-, ethyl ester(141-97-9) |
| EPA Substance Registry System | Ethyl acetoacetate (141-97-9) |
| UNSPSC Code | 85151701 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H227-H319-H303 | |||||||||
| Precautionary statements | P210e-P280a-P305+P351+P338-P337+P313-P501a-P210-P264-P280-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36 | |||||||||
| Safety Statements | 26-24/25 | |||||||||
| RIDADR | UN 1993 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | AK5250000 | |||||||||
| Autoignition Temperature | 580 °F | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 3.2 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29183000 | |||||||||
| Storage Class | 10 - Combustible liquids | |||||||||
| Hazardous Substances Data | 141-97-9(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 orally in rats: 3.98 g/kg (Smyth) | |||||||||
| REACH Registrations | Active | |||||||||
| Excepted Quantities | Non-Hazardous | |||||||||
| NFPA 704 |
|
Ethyl acetoacetate price More Price(102)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W241512 | Ethyl acetoacetate natural, ≥97%, FG | 141-97-9 | 1 each | $62.3 | 2026-04-30 | Buy |
| Sigma-Aldrich | W241512 | Ethyl acetoacetate natural, ≥97%, FG | 141-97-9 | 100g | $69.8 | 2026-04-30 | Buy |
| Sigma-Aldrich | W241512 | Ethyl acetoacetate natural, ≥97%, FG | 141-97-9 | 1kg | $218 | 2026-04-30 | Buy |
| Sigma-Aldrich | W241512 | Ethyl acetoacetate natural, ≥97%, FG | 141-97-9 | 5kg | $927 | 2026-04-30 | Buy |
| Sigma-Aldrich | W241504 | Ethyl acetoacetate ≥99%, FCC, FG | 141-97-9 | 1 each | $58 | 2026-04-30 | Buy |
Ethyl acetoacetate Chemical Properties, Uses, Production
Description
The organic compound ethyl acetoacetate (EAA) is the ethyl ester of acetoacetic acid. It is mainly used as a chemical intermediate in the production of a wide variety of compounds, such as amino acids, analgesics, antibiotics, antimalarial agents, antipyrine and amino pyrine, and vitamin B1; as well as the manufacture of dyes, inks, lacquers, perfumes, plastics, and yellow paint pigments. Alone, it is used as a flavoring for food.
Chemical Properties
Ethyl acetoacetate has a characteristic ether-like, fruity, pleasant, refreshing odor.
Chemical Properties
Ethyl 3-Oxobutanoate is a colorless liquid with a fruity, ethereal, sweet odor reminiscent of green apples. It is used to create fresh, fruity top notes in feminine fine fragrances. Ethyl acetoacetate occurs in flavors of natural materials such as coffee, strawberries, and yellow passion fruits.
Occurrence
Naturally occurring in strawberry, coffee, sherry, passion fruit juice (yellow), babaco fruit (Carica pentagona Heilborn) and bread.
Uses
Ethyl acetoacetate is used as an intermediate in organic synthesis and as a co-promoter for unsaturated polyester resins. It is widely used in the production of dyes, inks, perfumes, plastics and flavoring agents. It is an important starting material for the syntheses of alpha-substituted acetoacetic esters and cyclic compounds like pyrazole, pyrimidine and coumarin derivatives. It acts as an intermediate in the synthesis of vitamins and pharmaceuticals. It finds application as a formaldehyde scavenger.
Preparation
Ethyl acetoacetate is produced industrially by treatment of diketene with ethanol.
The preparation of ethyl acetoacetate is a classic laboratory procedure . It is prepared via the Claisen condensation of ethyl acetate. Two moles of ethyl acetate condense to form one mole each of ethyl acetoacetate and ethanol.
Definition
ChEBI: Ethyl acetoacetate is an ethyl ester resulting from the formal condensation of the carboxy group of acetoacetic acid with ethanol. It has a role as a flavouring agent, an antibacterial agent and a plant metabolite. It is functionally related to an acetoacetic acid.
Application
Ethyl acetoacetate can be used as a potential bio-based diluent for improving the cold flow properties of biodiesel from waste cooking oil[1]. Ethyl acetoacetate reacts with glycosylamines to form ethyl 3-(glycosylamino)crotonate, which is further transformed into ethyl 2-methyl-4-(polyhydroxyalkyl)pyrrole-3-carboxylates under conditions that promote the Amadori rearrangement of glycosylamines. It also reacts with ketohexylamines (D-fructosylamine, L-sorbosylamine) to form ethyl 2-methyl-5-(tetrahydroxybutyl)pyrrole-3-carboxylates[2].
Aroma threshold values
Detection: 520 ppb. Aroma characteristics at 10%: sweet fruity apple, fermented, slightly fusel-like and rummy, fruity banana with tropical nuances.
Taste threshold values
Taste characteristics at 100 ppm: fruity banana, apple and white grape with slightly green estry and tropical nuances.Taste characteristics at 300 ppm: estery, fatty, fruity and tutti-frutti
Synthesis Reference(s)
The Journal of Organic Chemistry, 58, p. 793, 1993 DOI: 10.1021/jo00055a046
General Description
A colorless liquid with a fruity odor. Flash point 185°F. Boiling point 365°F. May cause adverse health effects if ingested or inhaled. May irritate to skin, eyes and mucous membranes. Used in organic synthesis and in lacquers and paints.
Air & Water Reactions
Flammable.
Reactivity Profile
Ethyl acetoacetate, a beta-keto ester, is more reactive than many esters. Undergoes an exothermic cleavage reaction in the presence of concentrated base. Reacts with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. Mixing with 2,2,2-tris(bromomethyl)ethanol and zinc led to an explosion [US Patent 3 578 619, Crotonaldehyde may rapidly polymerize with Ethyl acetoacetate (Soriano, D.S. et al. 1988. Journal of Chemical Education 65:637.).1971].
Hazard
Toxic by ingestion and inhalation; irritant to skin and eyes.
Health Hazard
Liquid may cause mild irritation of eyes.
Flammability and Explosibility
Non flammable
Chemical Reactivity
Ethyl acetoacetate is subject to Keto - enol tautomerism. Ethyl acetoacetate is often used in the acetoacetic ester synthesis similar to diethyl malonate in the malonic ester synthesis or the Knoevenagel condensation. The protons alpha to carbonyl groups are acidic, and the resulting carbanion can undergo nucleophilic substitution. A subsequent thermal decarboxylation is also possible.Similar to the behavior of acetylacetone, the enolate of ethyl acetoacetate can also serve as a bidentate ligand. For example, it forms purple coordination complexes with iron (III) salts :
Ethyl acetoacetate can also be reduced to ethyl 3-hydroxy butyrate.
Safety Profile
eye irritant. Combustible liquid when exposed to heat or flame; can react with oxidzing materials. Explosive reaction when heated with Zn + tribromoneopentyl alcohol or 2,2,2 tris(bromomethy1)ethanol. To fight fire, use alcohol foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also ESTERS.
Synthesis
Ethyl acetoacetate is a mixture of two tautomer forms: the enolic and the ketonic; the liquid ester at equilibrium contains approximately 70% of the enolic form. It is prepared by Claisen condensation of ethyl acetate in the presence of sodium ethylate; also by reacting diketene with ethanol in the presence of sulfuric acid or triethylamine and sodium acetate, with or without solvent.
Purification Methods
Shake the ester with small amounts of saturated aqueous NaHCO3 (until no further effervescence), then with water. Dry it with MgSO4 or CaCl2 and distil it under reduced pressure. [Beilstein 3 IV 1528.]
Toxics Screening Level
The initial threshold screening level (ITSL) for ethyl acetoacetate is 46 μg/m3 based on an annual averaging time.
References
[1] LEICHANG CAO. Ethyl acetoacetate: A potential bio-based diluent for improving the cold flow properties of biodiesel from waste cooking oil[J]. Applied Energy, 2014, 114: Pages 18-21. DOI:10.1016/j.apenergy.2013.09.050.
[2] A.GóMEZ SáNCHEZ; J. V del P. Reaction of glycosylamines with ethyl acetoacetate[J]. Carbohydrate Research, 1966, 1 6: Pages 421-434. DOI:10.1016/S0008-6215(00)81220-3.
Ethyl acetoacetate Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of8
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Aite (Zhejiang) Supply Chain Management Co., Ltd | 15553101207 18615619105 | 1725391094@qq.com | China | 100 | 58 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29977 | 65 |
| Jinan Century Tongda Chemical Co., Ltd. | 13370556116 | 3350933950@qq.com | China | 356 | 58 |
| Shandong le Li New Materials Co. , Ltd. | 18906359122 | 258225957@qq.com | China | 53 | 58 |
| Shandong Jincheng Pharmaceutical Group Co.,Ltd. | 0533-5439427 | henry.zhang@jinchengpharm.com | China | 39 | 58 |
| Jinan Lianshun Chemical Co., Ltd | 0531 55568153 18560243899 | 1475213661@qq.com | China | 121 | 58 |
| Yangzhou juhechang Technology Co., Ltd | 0514-0514-83662002 13073488988 | 13073488988@163.com | China | 40 | 58 |
| Jinan Renyuan Chemical Co., Ltd. | 0531-86128689 18396852370 | 2770911192@qq.com | China | 292 | 58 |
| Shandong Xiangjingbang Energy Co., Ltd. | 15550001115 15550001115 | qihang163361@163.com | China | 2043 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
Related articles
- Ethyl Acetoacetate: A Versatile Compound for Biofilm Inhibition and Organic Synthesis
- Ethyl acetoacetate inhibits bacterial biofilm and is vital in organic synthesis, aiding pharmaceutical preparation due to taut....
- Dec 13,2024
Related Questions
Ask a questionView Latest Price from Ethyl acetoacetate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-19 | Ethyl acetoacetate
141-97-9
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-09-18 | Ethyl acetoacetate
141-97-9
|
1kg | 98%min | 10 tons | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-09-14 | Ethyl acetoacetate
141-97-9
|
1KG | ≥99% | 15 Tons/Month | Yancheng Longshen Chemical Co.,Ltd. |
-
- Ethyl acetoacetate
141-97-9
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- Ethyl acetoacetate
141-97-9
- $0.00
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Ethyl acetoacetate
141-97-9
- $0.00
- ≥99%
- Yancheng Longshen Chemical Co.,Ltd.
