Echemi chemical products methylacetoacetate description

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Colorless, clear liquidA clear colorless liquid. Flash point 158°F. Denser than water and slightly soluble in water. Vapors heavier than air.

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CAS No:105-45-3
Formula:C5H8O3
Synonyms:MAA;ACM;Acetoaceticac;HYLACETOACETATE;mthylacetoacetate;METHYLACETOACETA
T;METHYLACETOACETATE;METHYL3-OXOBUTYRATE;ACETYLMETHYLACETATE;METHYL4-OXOBUTA
NOATE
China Export:From 2018.11 to 2019.11, total export volume of Methylacetoacetate from China
was 51,767,570KG while total export value was $276,868,884. The biggest proportion of
exporting volume in the last 12 months was 11.11% in 2019.03.
Echemi Chemical Products Methylacetoacetate Description
Colorless, clear liquidA clear colorless liquid. Flash point 158°F. Denser than water and slightly
soluble in water. Vapors heavier than air.
Echemi Chemical Products Methylacetoacetate Basic Attributes
CAS No：105-45-3
Molecular Formula ：C5H8O3
Molecular Mass ：116.12
Exact Mass ：116.047 g/mol
PSA ：43.4 A^2
LogP ：0
EINECS ：203-299-8
InChIKeys ：WRQNANDWMGAFTP-UHFFFAOYSA-N
H-bond Acceptor ：3
H-bond Donor ：0
SP3 ：0.60
RBN ：3
Echemi Chemical Products Methylacetoacetate Characteristics
Appearance ：APHA: ≤20 Liquid
Density ：1.08
Melting Point ：-28 °C

$Bolling Point ：169-170 °C70 mm Hg(lit.) Flash Point ：158 °F Refractive Index ：n 20/D 1.419(lit.) Solubility ：H2O: 460 g/L (20 ºC) Storage Condition ：2-8°C Vapor Pressure ：Vapour pressure, kPa at 20°C: 0.17 Vapor Density ：Relative vapour density (air = 1): 4.0 BRN ：506727 Stability ：MAA and EAA are stable liquids Echemi Chemical Products Methylacetoacetate Safety Information HS Code ：29183000 UN No. ：1993 WGK_Germany ：1 Risk Code ：36$

Safety Instructions ：26
RTECS No. ：AK5775000
Dangerous Mark ：Xi
Storage ：Separated from oxidants.
P Code ：P264, P280, P305+P351+P338, P33, P313
Hazard Statements ：H319
Explosion Limits ：1.3-14.2%(V)
Toxicity ：LD50 orally in rats: 3.0 g/kg (Smyth, Carpenter)
Echemi Chemical Products Methylacetoacetate Product Usage
3-Oxobutanoic Acid Methyl Ester is a chemical reagent used in the synthesis of pharmaceuticals.
It participates in the Biginelli reaction, forming molecules including dihydropyrimidinones.
Echemi Chemical Products Methylacetoacetate Production Methods
The preparation method is similar to the preparation method of ethyl acetoacetate. Diketene and
methanol are reacted under the catalytic action of sulfuric acid to obtain a crude product, and
the finished product is obtained by rectification.

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