2-Methylbutyric acid , 98% , 116-53-0

Synonym(s):
NSC 7304

CAS NO.：116-53-0

Empirical Formula: C5H10O2

Molecular Weight: 102.13

MDL number: MFCD00002669

EINECS: 204-145-2

PRODUCT Properties

• Melting point: -70 °C
• Boiling point: 176-177 °C (lit.)
• Density: 0.936 g/mL at 25 °C (lit.)
• vapor pressure: 0.5 mm Hg ( 20 °C)
• refractive index: n20/D 1.405(lit.)
• FEMA: 2695 | 2-METHYLBUTYRIC ACID
• Flash point: 165 °F
• storage temp.: Sealed in dry,Room Temperature
• solubility: 20g/l
• form: Liquid
• pka: 4.8(at 25℃)
• color: Clear colorless to pale yellow
• Odor: at 10.00 % in propylene glycol. pungent acid roquefort cheese
• Odor Type: acidic
• biological source: synthetic
• explosive limit: 1.6-7.3%(V)
• Water Solubility: 45 g/L (20 ºC)
• JECFA Number: 255
• BRN: 1720486
• LogP: 1.8 at 25℃
• CAS DataBase Reference: 116-53-0(CAS DataBase Reference)
• NIST Chemistry Reference: Butanoic acid, 2-methyl-(116-53-0)
• EPA Substance Registry System: 2-Methylbutyric acid (116-53-0)

Description and Uses

2-Methylbutyric acid has a pungent, acrid odor similar to Roquefort cheese with an acrid taste. At low dilutions, it has a pleasant fruity taste. May be prepared by decarboxylation of methyl ethyl malonic acid (with heat); also by oxidation of fermentation amyl alcohol (fusel oil).

2-Methylbutyric acid was used in the synthesis of 2-methylbutyric anhydride, an acylating agent.

Safety

• Symbol(GHS): GHS05,GHS07
• Signal word: Danger
• Hazard statements: H290-H302+H312-H314
• Precautionary statements: P234-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338
• Hazard Codes: C
• Risk Statements: 21/22-34
• Safety Statements: 26-36/37/39-45
• RIDADR: UN 3265 8/PG 3
• WGK Germany: 1
• RTECS: EK7897000
• F: 13
• TSCA: Yes
• HazardClass: 8
• PackingGroup: III
• HS Code: 29156090
• Limited Quantities: 1.0 L (0.3 gallons) (liquid) or 1 Kg (2.2 lbs) (solid)
• Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)