8.14190

Methyl isobutyrylacetate

for synthesis

• Synonym(s): Methyl isobutyrylacetate, Isobutyrylacetic acid methyl ester, Methyl 4-methyl-3-oxopentanoate
• Linear Formula: CH₃CH(CH₃)COCH₂COOCH₃
• CAS Number: 42558-54-3
• Molecular Weight: 144.17
• UNSPSC Code: 12352108
• EC Index Number: 418-900-0
• NACRES: NA.22

Properties

• vapor pressure: 1.3 hPa ( 20 °C)
• Quality Level: 200
• Assay: ≥96.0% (GC)
• autoignition temp.: 280 °C
• potency: >2000 mg/kg LD₅₀, oral (Rat)
• expl. lim.: 1.29 % (v/v)
• pH: 4.8 (20 °C, 10 g/L in H₂O)
• bp: 192 °C/1013 hPa
• mp: -75 °C
• transition temp: flash point 79 °C
• solubility: 43.6 g/L
• density: 1.01 g/cm³ at 20 °C
• storage temp.: 2-30°C

Description

Analysis Note

Assay (GC, area%): ≥ 96.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.009 - 1.011
Identity (IR): passes test

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1
• Flash Point(F): 174.2 °F - closed cup
• Flash Point(C): 79 °C - closed cup