Methyl Acetoacetate
Title: Methyl Acetoacetate
CAS Registry Number: 105-45-3
CAS Name: 3-Oxobutanoic acid methyl ester
Molecular Formula: C5H8O3
Molecular Weight: 116.12
Percent Composition: C 51.72%, H 6.94%, O 41.33%
Line Formula: CH3COCH2COOCH3
Literature References: Toxicity data: H. F. Smyth, C. P. Carpenter, J. Ind. Hyg. Toxicol. 30, 63 (1948).
Properties: Liquid. d 1.078-1.080. bp 169-171° (slight dec). mp -80°. nD20 1.418. Flash pt 82°C. Sol in 2 parts water; miscible with alc, ether; gives a deep red color with FeCl3. LD50 orally in rats: 3.0 g/kg (Smyth, Carpenter).
Melting point: mp -80°
Boiling point: bp 169-171° (slight dec)
Flash point: Flash pt 82°C
Index of refraction: nD20 1.418
Density: d 1.078-1.080
Toxicity data: LD50 orally in rats: 3.0 g/kg (Smyth, Carpenter)

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