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Ethyl Acetoacetate

HCID 8868
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Basic information

CAS
141-97-9
Standard SMILES
CCOC(=O)CC(C)=O
InChIKey
XYIBRDXRRQCHLP-UHFFFAOYSA-N
Molecular formula
C6H10O3
Average molar mass
130.14 g/mol
Monoisotopic mass
130.06299418

Overview

Ethyl acetoacetate appears as 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.

Names & identifiers

Preferred name
Ethyl Acetoacetate
IUPAC
ethyl 3-oxobutanoate
English name
Ethyl acetoacetate
Molecular formula
C6H10O3
Molecular weight
130.14

Names & synonyms

ethyl acetoacetateethyl 3-oxobutanoate141-97-9ethyl acetylacetatediacetic etherethyl 3-oxobutyrateButanoic acid, 3-oxo-, ethyl esterAcetoacetic esteracetoacetic acid, ethyl esterethyl acetylacetonate3-oxobutanoic acid ethyl esteractive acetyl acetate
Show more names
ACEEAAEthyl acetoacetate, 99%, pureEthyl acetoacetate, extra pureETHYL ACETOACETATE, 99%ETHYL ACETOACETATE, 99%ETHYL ACETOACETATE, 99%ETHYL ACETOACETATE, 99%FEMA 24153-OXOBUTYRIC ACID ETHYL ESTER
Active acetylacetateEthyl acetyl acetateACETOACETIC ACID ETHYL ESTERethyl beta-ketobutyrateEthylacetacetat1-Ethoxybutane-1,3-dioneethyl-acetoacetateAcetoctan ethylnaty

Database identifiers

CAS
141-97-9
PubChem CID
8868
DTXSID
DTXSID2027092
ChEMBL
CHEMBL169176
ChEBI
CHEBI:4893
UNII
IZP61H3TB1
EC Number
205-516-1
Nikkaji
J4.493H

Properties

Computed structural properties

XLogP
0.2
Topological polar surface area
43.4 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
3
Rotatable bonds
4
Heavy atoms
9
Formal charge
0
Complexity
117

Experimental & physicochemical properties

Chemical ClassesOther Classes -> Esters, Other
SpringerMaterials PropertiesBoiling point
FragrancesFragrance Ingredient (Ethyl acetoacetate) -> IFRA transparency List
LogP · 4 items

log Kow = 0.25

0.25

0.27

0.25

OdorPLEASANT GREEN, FRUITY, RUM ODOR
TasteRIPE FRUIT TASTE
Food AdditivesFLAVORING AGENT OR ADJUVANT -> FDA Substance added to food
Density · 5 items

1.028 at 68 °F (USCG, 1999) - Denser than water; will sink

1.0282 AT 20 °C/4 °C

Relative density (water = 1): 1.021

1.022-1.027

1.0282 @ 20°C

Flavoring AgentsEU Flavoring substances
Color/Form

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 6 items

This chemical does not meet GHS hazard criteria for 76.8% (1836 of 2392) of all reports.

Warning

H319 (17.4%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

P264+P265, P280, P305+P351+P338, and P337+P317 (click each P-code to see the statement)

Aggregated GHS information provided per 2392 reports by companies from 13 notifications to the ECHA C&L Inventory.

Warning

Hazard information

Regulatory Information · 5 items

Chemical: Butanoic acid, 3-oxo-, ethyl ester

Regulation (EC) No 1831/2003 (amended)

Butanoic acid, 3-oxo-, ethyl ester is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Butanoic acid, 3-oxo-, ethyl ester are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

REACH registered substance: Ethyl acetoacetate (EC: 205-516-1)

Ethyl acetoacetate: Does not have an individual approval but may be used under an appropriate group standard

DOT LabelFlammable Liquid
Fire Hazards · 2 items

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

Combustible. Above 70 °C explosive vapour/air mixtures may be formed.

Fire PotentialMODERATE WHEN EXPOSED TO HEAT OR FLAME.
Health HazardsLiquid may cause mild irritation of eyes. (USCG, 1999)
Hazards Summary · 1 item

A skin and eye irritant; [Hawley] A mutagen; Severe irritant in rabbit eye; [RTECS] A skin, eye, and respiratory tract irritant; [ICSC] Following repeated oral exposure of ethyl acetoacetate in rats, no treatment-related adverse effects (including haematology, clinical chemistry, gross necropsy and histopathology) were reported up to 1000 mg/kg bw/d. There is no information on health effects in humans following repeated exposure to ethyl acetoacetate via any route. [ChemPortal: SIDS] Safe when used as a flavoring agent in food; [JECFA] An eye irritant; A moderate skin and mucous membrane irritant; Emergency treatment: irritants; [HSDB] An irritant; May cause serious eye injury; [MSDSonline]

Chemistry & industry

Pharmacology

Cellular LocationsCytoplasm

Uses & manufacturing

Uses · 4 items

Used in lacquers and plastics, to make pharmaceuticals, and as a flavoring agent; [Hawley] Used to make inks, photographic and vat dyes, yellow pigments in paints, amino acids, methionine, analgesics, and aminopyrene; [HSDB] Primarily used as a chemical intermediate; Also used in consumer cleaning supplies and cosmetics and as a solvent in paints; [ExPub: European Commission]

Painting (Solvents) [Category: Paint]

FLAVORING AGENT IN FOOD

CHEMICAL INTERMEDIATE FOR YELLOW PIGMENTS IN PAINTS, LACQUERS, INKS, PHOTOGRAPHIC & VAT DYES, AMINO ACIDS, METHIONINE, ANTIMALARIAL AGENTS (ATABRINE), THIAMINE (VITAMIN B1), ANALGESICS, ANTIPYRENE, & AMINOPYRENE

U.S. Exports · 3 items

(1972) No Data

(1975) No Data

(1986) No Data

U.S. Imports · 3 items

(1972) No Data

(1975) No Data

(1986) No Data

U.S. Production · 4 items

2023: 8,500,000 - <10,000,000 lb

(1972) GREATER THAN 9.08X10+5 GRAMS

(1975) GREATER THAN 4.54X10+5 GRAMS

(1986) No Data

Consumer UsesSolvent
Industry UsesNot Known or Reasonably Ascertainable
Methods of Manufacturing · 3 items

REACTION OF HIGH-PURITY ETHYL ACETATE WITH METALLIC SODIUM FOLLOWED BY NEUTRALIZATION WITH SULFURIC ACID

...FROM ETHYL ACETATE BY ACTION OF SODIUM, SODIUM ETHOXIDE, SODAMIDE OR CALCIUM: INGLIS, ROBERTS, ORG SYN COLL VOL 1, 2ND EDITION (1941) PAGE 235; HANSLEY, SCHOTT, US PATENT 2,843,623 (1958 TO NATIONAL DISTILLERS)...

Related reactions

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HRID 2845 reaction equation
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HRID 3396 reaction equation
HRID 3396As reactantuspto-grants-1998_03
HRID 3979 reaction equation
HRID 3979As reactantuspto-grants-1988_02
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HRID 10835As reactantuspto-grants-2006_08
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HRID 11168As reactantuspto-grants-2006_08
HRID 12564 reaction equation
HRID 12564As reactantuspto-grants-2010_06
Page 1 of 197

Compound notes

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COLORLESS LIQUID
Solubility · 6 items

SOL IN ABOUT 35 PARTS WATER

SOL IN BENZENE, & CHLOROFORM; MISCIBLE WITH ETHER, & ACETONE

water solubility = 1.11X10+5 mg/l @ 17 °C

110 mg/mL at 17 °C

Solubility in water, g/100ml at 20 °C: 2.86

miscible in alcohol, ether, ethyl acetate, 1 ml in 12 ml water

Flash Point · 3 items

135 °F (USCG, 1999)

184 °F CC (84.4 °C)

70 °C c.c.

Physicochemical properties

Melting point
45 °C · −45 °C (−49 °F; 228 K)
Boiling point
180.8 °C · 180.8 °C (357.4 °F; 453.9 K)
Density
1.03 g/cm3, · 1.030 g/cm3, liquid
vapor density
4.48 · 4.48 (vs air)
vapor pressure
1 mm · 1 mm Hg ( 28.5 °C)
FEMA
2415 · 2415 | ETHYL ACETOACETATE
refractive index
1.42 · 1.420
FLAVIS Number
9.402 · 09.402 | Ethyl acetoacetate
Flash point
70 °C · 70 °C (158 °F; 343 K)
storage temp.
30 °C · Store below +30°C.
solubility
116 g/L · 116 g/L (20°C)
pka
11 · 11(at 25℃)
form
liquid
color
Colourless
Specific Gravity
1.027 · 1.027~1.035 (20/4℃)
PH
4 · 4.0 (110g/l, H2O, 20℃)
Odor
Agreeable, fruity.
Relative polarity
0.577 · 0.577
explosive limit
1 · 1.0-54%(V)
Odor Type
fruity
biological source
synthetic
Water Solubility
116 g/L · 116 g/L (20 ºC)
Thermal Conductivity
0.152 W/ · 0.152 W/(m·K) at 25 ℃
Specific Heat Capacity
1.91 J/ · Cp(liquid): 1.91 J/(g·K), at 25℃
JECFA Number
595 · 595
Merck
14 · 14,3758
BRN
385838 · 385838
Henry's Law Constant
9 · 9.0×100 mol/(m3Pa) at 25℃, Brockbank (2013)
Dielectric constant
15 · 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 · 0.8 at 20℃
Surface tension
31.93 mN/m · 31.93mN/m at 298.15K
CAS DataBase Reference
141 · 141-97-9(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)
ETHYL ACETOACETATE
FDA 21 CFR
175.3 · 175.300
EWG's Food Scores
1 · 1
FDA UNII
61 H3TB1 · IZP61H3TB1
NIST Chemistry Reference
3 · Butanoic acid, 3-oxo-, ethyl ester(141-97-9)
EPA Substance Registry System
Ethyl acetoacetate (141-97-9)
UNSPSC Code
85151701 · 85151701
NACRES
24 · NA.24
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
227 · H227-H319-H303
Precautionary statements
210 e-P280a-P305+P351+P338-P337+P313-P501a-P210-P264-P280-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501 · 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 · 36
Safety Statements
26 · 26-24/25
RIDADR
1993 · UN 1993
WGK Germany
1 · 1
RTECS
5250000 · AK5250000
Autoignition Temperature
580 °F · 580 °F
TSCA
TSCA listed
HazardClass
3.2 · 3.2
PackingGroup
III
HS Code
29183000 · 29183000
Storage Class
10 · 10 - Combustible liquids
Hazardous Substances Data
141 · 141-97-9(Hazardous Substances Data)
Toxicity
50 orally · LD50 orally in rats: 3.98 g/kg (Smyth)
REACH Registrations
Active
Excepted Quantities
Non-Hazardous
FDA Requirements · 2 items

FDA 121.1164.

FDA 172.515. FLAVOR USEFUL IN STRAWBERRY, FRUIT FLAVORS.

Reactive GroupEsters, Sulfate Esters, Phosphate Esters, Thiophosphate Esters, and Borate Esters
Special ReportsA REVIEW WITH 8 REFERENCES ON ETHYL ACETOACETATE TOXICITY.[OPDYKE DL J; FRAGRANCE RAW MATRIALS. DIPENTENE. ETHYL ACETOACETATE; FOOD COSMET TOXICOL 12(5-6) 713 (1974)]
EPA Safer ChemicalChemical: Ethyl acetoacetate
Reactivity AlertsHighly Flammable
Reactivity Profile · 1 item

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].

Safety & protection

Fire Fighting · 2 items

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

Use water spray, powder, foam, carbon dioxide.

First Aid Measures · 4 items

Fresh air, rest.

Remove contaminated clothes. Rinse and then wash skin with water and soap.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Give one or two glasses of water to drink. Rest.

First AidEYES: flush with water for 15 min. (USCG, 1999)
Safe StorageSeparated from strong oxidants. Ventilation along the floor. Well closed.
Fire Fighting ProceduresUSE ALCOHOL FOAM, CARBON DIOXIDE, DRY CHEMICAL.
Nonfire Spill ResponseExcerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:
Spillage DisposalCollect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Wash away remainder with plenty of water.
Isolation and EvacuationExcerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:
Eye PreventionWear safety spectacles.
Fire PreventionNO open flames. Above 70 °C use a closed system and ventilation.
Inhalation RiskA harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20 °C; on spraying or dispersing, however, much faster.
Skin PreventionProtective gloves.

Toxicology

Exposure RoutesThe substance can be absorbed into the body by inhalation.
Signs and Symptoms · 3 items

Cough. Sore throat.

Redness.

Redness. Pain.

Natural Pollution SourcesNATURALLY OCCURRING IN STRAWBERRY...
Human Toxicity Excerpts · 2 items

MODERATELY IRRITATING TO SKIN, MUCOUS MEMBRANES.

MODERATELY TOXIC BY INGESTION & INHALATION IRRITANT TO...EYES.

Non-Human Toxicity Excerpts · 3 items

RATS EXPOSED TO CONCENTRATED VAPOR FOR 8 HR SHOWED NO MORTALITIES. /FROM TABLE/

IT IS LESS TOXIC THAN ITS METHYL HOMOLOGUE, WITH AN ORAL LD50 IN RAT OF 3.98 G/KG & A DERMAL LD50 IN RABBIT OF MORE THAN 10 ML/KG. IT IS LESS IRRITANT TO SKIN & EYES THAN METHYL ESTER.

RATED 4 ON RABBIT EYES. SUBSTANCES DESIGNATED IN THIS MANNER HAVE BEEN TESTED EXTERNALLY ON EYES OF RABBITS & HAVE BEEN RATED NUMERICALLY ON SCALE OF 1 TO 10 ACCORDING TO DEGREE OF INJURY OBSERVED AFTER 24 HR, PAYING PARTICULAR ATTENTION TO CONDITION OF CORNEA. MOST SEVERE INJURIES HAVE BEEN RATED 10.

Toxicity DataLC50 (rat) > 1,380 ppm/4h

Regulatory information

FDA Requirements · 2 items

FDA 121.1164.

FDA 172.515. FLAVOR USEFUL IN STRAWBERRY, FRUIT FLAVORS.

Safety data

wgk
1
tsca
TSCA listed
rtecs
AK5250000
ridadr
UN 1993
hs_code
29183000
Toxicity
LD50 orally in rats: 3.98 g/kg (Smyth)
risk_code
36
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
Xi
safety_code
26-24/25
hazard_class
3.2
Storage Class
10 - Combustible liquids
packing_group
III
Hazard statements
H227-H319-H303
Excepted Quantities
Non-Hazardous
REACH Registrations
Active
Autoignition Temperature
580 °F
Precautionary statements
P210e-P280a-P305+P351+P338-P337+P313-P501a-P210-P264-P280-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501
Hazardous Substances Data
141-97-9(Hazardous Substances Data)

...BY CLAISEN CONDENSATION OF ETHYL ACETATE IN PRESENCE OF SODIUM ETHYLATE; ALSO BY REACTING DIKETENE WITH ETHANOL IN PRESENCE OF SULFURIC ACID OR TRIETHYLAMINE & SODIUM ACETATE, WITH OR WITHOUT SOLVENT.

Formulations/PreparationsGRADES: TECHNICAL; 98%.
Household ProductsInformation on 32 consumer products that contain Ethyl Acetoacetate in the following categories is provided:
Use Classification · 6 items

EPA Safer Chemical Functional Use Classes -> Solvents

Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern

Fragrance Ingredients

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

Flavoring Agents -> JECFA Flavorings Index

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

General Manufacturing Information · 4 items

Soap, Cleaning Compound, and Toilet Preparation Manufacturing

Butanoic acid, 3-oxo-, ethyl ester: ACTIVE

17 PPM IN NON-ALCOHOLIC BEVERAGES; 24 PPM IN ICE CREAM, ICES, ETC; 110 PPM IN CANDY; 120 PPM IN BAKED GOODS; 93 PPM IN GELATINS & PUDDINGS; & 530 PPM IN CHEWING GUM.

USEFUL AS STRAWBERRY, FRUIT FLAVORS. FEMA NUMBER 2415.

Applications · 4 items

DescriptionThe 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.

OccurrenceNaturally occurring in strawberry, coffee, sherry, passion fruit juice (yellow), babaco fruit (Carica pentagona Heilborn) and bread.

UsesEthyl 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.

General DescriptionA 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.

Preparation methods · 1 item

PreparationEthyl 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.

Upstream & downstream products

Upstream raw materials

Acetyl keteneEthanolSodiumSodium ethoxideEsterification solutionConcentrated sulfuric acidMethane

Downstream products

3-Chloro-4-methyl-7-hydroxycounmarinEthyl 2-hydroxy-4-methyl-5-pyrimidinecarboxylateBispyrazolone4-Chloro-2,6-dimethyl-nicotinic acidEthyl 2,4-dimethylquinoline-3-carboxylateDisperse Yellow H-4GLEthyl 2-acetyl-3-oxo-hexanoate1-(6-Chloro-2-hydroxy-4-phenyl-quinolin-3-yl)-ethanoneEthyl 3-hydroxybutyrate5-Methyl-1-phenyl-1H-pyrazole-4-carboxylic acidPhenoxyacetic acid5,7-Dihydroxy-4-methylcoumarin4-Hydroxy-2-methylquinolineEthyl 4-chloro-2,6-dimethylpyridine-3-carboxylate7-Acetoxy-4-methylcoumarin3-Ethoxycarbonyl-5,6-dihydro-2-methyl-4H-pyranN-Phenylglycine potassium saltTIADINILEthyl 5-methyl-1-phenyl-1H-pyrazole-4-carboxylate1-Bromo-5-hexanonePentoxifylline6-tert-Butyl-4-methylcoumarin4-MethylumbelliferoneEthyl 2-(hydroxyimino)-3-oxobutanoateCloricromene2,4-Dimethylquinoline-3-carboxylic acidAcetoacetic AcidEthyl 3-anilinobut-2-enoate(5-Methyl-1-phenyl-1H-pyrazol-4-yl)methanolChrysin4,7-Dimethylcoumarin3-Ethyl-4-methyl-3-pyrrolin-2-one4-Chloro-6-methyl-2-(methylthio)pyrimidine2-Amino-6-methyl-4-pyrimidinol4-Methylcumarin1,3-Dimethyl-5-hydroxypyrazole6-Methyl-2-(methylthio)pyrimidin-4-ol7,8-Dihydroxy-4-methylcoumarin3-Methyl-5-phenyl-4-isoxazolecarboxylic acidethyl 2-[2-(diethylamino)ethyl]acetoacetate
Additional notes · 1 item

DefinitionChEBI: 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.