2(5H)-Furanone , 98% , 497-23-4

Synonym(s):
γ-Crotonolactone;2-Buten-1,4-olide

CAS NO.：497-23-4

Empirical Formula: C4H4O2

Molecular Weight: 84.07

MDL number: MFCD00005376

EINECS: 207-839-3

PRODUCT Properties

• Melting point: 4-5 °C (lit.)
• Boiling point: 86-87 °C/12 mmHg (lit.)
• Density: 1.185 g/mL at 25 °C (lit.)
• FEMA: 4138 | 4-HYDROXY-2-BUTENOIC ACID GAMMA-LACTONE
• refractive index: n20/D 1.469(lit.)
• Flash point: 214 °F
• storage temp.: 2-8°C
• solubility: Chloroform, Ethyl Acetate (Slightly)
• form: Liquid
• color: Clear colorless to pale yellow or amber
• Odor: buttery
• Odor Type: buttery
• Water Solubility: Immiscible with water.
• JECFA Number: 2000
• BRN: 383585
• Stability: Moisture Sensitive
• InChIKey: VIHAEDVKXSOUAT-UHFFFAOYSA-N
• LogP: -0.600
• CAS DataBase Reference: 497-23-4(CAS DataBase Reference)
• NIST Chemistry Reference: 2(5H)-Furanone(497-23-4)
• EPA Substance Registry System: 2(5H)-Furanone (497-23-4)

Description and Uses

2(5H)-Furanone is employed in the preparation of 5-substituted 2(5H) furanones (gamma-butenolides) catalyzed by bifunctional aminothiourea and aminosquaramide organocatalysts through direct aldol reaction with aromatic aldehydes. Further, it is used in the synthesis of lignans by Michael addition reactions. In addition to this, it is used in three-component Michael-Aldol reactions with an aldehyde and thiolate or carbanion.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319
• Precautionary statements: P280a-P305+P351+P338-P321-P332+P313-P337+P313-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 26
• WGK Germany: 3
• RTECS: LU3453000
• F: 8-10
• Hazard Note: Irritant
• HS Code: 29322980
• Hazardous Substances Data: 497-23-4(Hazardous Substances Data)