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141-97-9

Basic Information
CAS No.: 141-97-9
Name: Ethyl acetoacetate
Molecular Structure:
Molecular Structure of 141-97-9 (Ethyl acetoacetate)
Formula: C6H10O3
Molecular Weight: 130.16
Synonyms: Ethyl beta-ketobutyrate;FEMA No. 2415;Acetoacetic ester;Ethyl 3-oxobutyrate;Active acetyl acetate;3-Oxobutanoic acid ethyl ester;Ethyl acetylacetate;Ethylester kyseliny acetoctove [Czech];Acetoctan ethylnaty [Czech];1-Ethoxybutane-1,3-dione;Active acetylacetate;Butanoic acid, 3-oxo-, ethyl ester;Ethyl 3-oxobutanoate;
EINECS: 205-516-1
Density: 1.021 g/cm3
Melting Point: -43 °C
Boiling Point: 180.6 °C at 760 mmHg
Flash Point: 67 °C
Solubility: water: 116 g/L (20 °C)
Appearance: Colourless liquid
Hazard Symbols: IrritantXi
Risk Codes: 36
Safety: 26-24/25
Transport Information: UN 1993
PSA: 43.37000
LogP: 0.52860
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Consensus Reports

Reported in EPA TSCA Inventory.

Specification

The Ethyl acetoacetate, with the CAS registry number 141-97-9, is also known as Acetoacetic ester; Ethyl 3-oxobutanoate; Ethyl beta-ketobutyrate; EAA. It belongs to the product categories of Carbonyl Compounds;Chemical Synthesis;E-H;Esters;Organic Building Blocks.Its EINECS number is 205-516-1.This chemical's molecular formula is C6H10O3 and molecular weight is 130.14. What's more,Its systematic name is Ethyl acetoacetate.It is a colorless liquid with a fruity odor.And it is stable,Incompatible with acids,bases,oxidizing agents,reducing agents,alkali metals,Combustible.The Ethyl acetoacetate may cause adverse health effects if ingested or inhaled, and it is irritate to skin, eyes and mucous membranes.When you use it ,you should avoid contact with skin and eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.It should Store in a tightly closed container,in a cool,dry place.Keep away from sources of ignition.

Physical properties about Ethyl acetoacetate are:
(1)ACD/LogP: 0.716; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.72; (4)ACD/LogD (pH 7.4): 0.72; (5)ACD/BCF (pH 5.5): 2.06; (6)ACD/BCF (pH 7.4): 2.06; (7)ACD/KOC (pH 5.5): 58.42; (8)ACD/KOC (pH 7.4): 58.39; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 3; (12)Index of Refraction: 1.408; (13)Molar Refractivity: 31.651 cm3; (14)Molar Volume: 128.178 cm3; (15)Surface Tension: 30.2719993591309 dyne/cm; (16)Density: 1.015 g/cm3; (17)Flash Point: 67.019 °C; (18)Enthalpy of Vaporization: 41.683 kJ/mol; (19)Boiling Point: 180.567 °C at 760 mmHg; (20)Vapour Pressure: 0.889999985694885 mmHg at 25°C.

Preparation of Ethyl acetoacetate:
Ethyl acetoacetate is produced industrially by treatment of diketene with ethanol which 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.
Ethyl acetoacetate is produced industrially by treatment of diketene with ethanol which 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.

Uses of Ethyl acetoacetate:
Ethyl acetoacetate is used as starting material for the syntheses of alpha-substituted acetoacetic esters and cyclic compounds, e.g. pyrazole, pyrimidine and coumarin derivatives as well as intermediate for vitamins and pharmaceuticals.

You can still convert the following datas into molecular structure:
(1)SMILES:CCOC(=O)CC(=O)C;
(2)Std. InChI:InChI=1S/C6H10O3/c1-3-9-6(8)4-5(2)7/h3-4H2,1-2H3;
(3)Std. InChIKey:XYIBRDXRRQCHLP-UHFFFAOYSA-N.

The toxicity data of Ethyl acetoacetate as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral 5105mg/kg (5105mg/kg)   Journal of Pharmaceutical Sciences. Vol. 60, Pg. 1810, 1971.
rabbit LD skin > 20mL/kg (20mL/kg)   Union Carbide Data Sheet. Vol. 3/12/1969,
rat LD50 oral 3980mg/kg (3980mg/kg)   Journal of Industrial Hygiene and Toxicology. Vol. 31, Pg. 60, 1949.