Isobutyl Butyrate , >98.0%(GC) , 539-90-2

Synonym(s):
2-Methylpropyl butanoate;2-Methylpropyl butyrate;Isobutyl butanoate;NSC 406938

CAS NO.：539-90-2

Empirical Formula: C8H16O2

Molecular Weight: 144.21

MDL number: MFCD00027134

EINECS: 208-729-8

PRODUCT Properties

• Melting point: -88.07°C (estimate)
• Boiling point: 157-158 °C(lit.)
• Density: 0.861 g/mL at 25 °C(lit.)
• vapor density: 5 (vs air)
• refractive index: n20/D 1.403(lit.)
• FEMA: 2187 | ISOBUTYL BUTYRATE
• Flash point: 114 °F
• solubility: Very slightly soluble in water, miscible with alcohol and oils
• color: Colorless to Almost colorless
• Odor: at 100.00 %. sweet fruity pineapple tutti frutti rum cherry apple overripe fruit bubble gum
• Odor Type: fruity
• Odor Threshold: 0.0016ppm
• biological source: synthetic
• JECFA Number: 158
• Merck: 14,5136
• Dielectric constant: 4.0（20℃）
• LogP: 2.76
• CAS DataBase Reference: 539-90-2(CAS DataBase Reference)
• NIST Chemistry Reference: Butanoic acid, 2-methylpropyl ester(539-90-2)
• EPA Substance Registry System: Isobutyl butyrate (539-90-2)

Description and Uses

Isobutyl butyrate has a fruity odor reminiscent of apple or pineapple and a sweet flavor reminiscent of rum. May be prepared by esterification of butyric acid with isobutyl alcohol in the presence of concentrated H2S04; or by enzymatic action of hog pancreas on a mixture of isobutyl alcohol and butyric acid in the absence of water.

Safety

• Symbol(GHS): GHS02
• Signal word: Warning
• Hazard statements: H226-H412
• Precautionary statements: P210-P273
• Hazard Codes: N
• Risk Statements: 10-50/53-52/53
• Safety Statements: 16-27-36/37/39-61-60
• RIDADR: UN 3272 3/PG 3
• WGK Germany: 2
• RTECS: ET5020000
• HazardClass: 3.2
• PackingGroup: III
• HS Code: 29156000
• Limited Quantities: 5.0 L (1.3 gallons) (liquid)
• Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)