Ethyl trans-4-oxo-2-butenoate , 96% , 2960-66-9

CAS NO.：2960-66-9

Empirical Formula: C6H8O3

Molecular Weight: 128.13

MDL number: MFCD00236170

EINECS: 1592732-453-0

PRODUCT Properties

• Melting point: -9°C
• Boiling point: 184-188°C
• Density: 1,063 g/cm³
• refractive index: 1.4550
• Flash point: 68°C
• storage temp.: Inert atmosphere,Store in freezer, under -20°C
• Appearance: Colorless to light yellow Liquid
• Water Solubility: Slightly soluble in water(2.6 g/L at 25°C).
• BRN: 8762336

Description and Uses

Ethyl trans-4-oxo-2-butenoate is an intermediate used to synthesize pharmaceutically active molecules. It is also used in the asymmetric catalytic alkynylation of acetaldehyde, producing attractive synthons with broad applications, such as (+)-Tetrahydropyrenophorol.

Safety

• Symbol(GHS): GHS05,GHS06
• Signal word: Danger
• Hazard statements: H227-H301-H314-H317-H318
• Precautionary statements: P210e-P301+P310a-P303+P361+P353-P305+P351+P338-P405-P501a
• Risk Statements: 25-34-43
• Safety Statements: 23-36/37/39-45-24/25
• RIDADR: 2927
• HazardClass: 8
• PackingGroup: III
• HS Code: 29183000
• Limited Quantities: 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
• Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)