α-Methylene-γ-butyrolactone , 95%, containing ~ 2%2,6-two-uncle butadiecetic tailphenol stabilizer , 547-65-9

Synonym(s):
α′-Angelicalactone;3-Methylenedihydro-2(3H)-furanone;5-Methylenedihydro-2(3H)-furanone;alpha-Methylene-gamma-butyrolactone;Tulipane

CAS NO.：547-65-9

Empirical Formula: C5H6O2

Molecular Weight: 98.1

MDL number: MFCD00005407

EINECS: 208-931-6

PRODUCT Properties

• Melting point: <25 °C
• Boiling point: 86-88 °C12 mm Hg(lit.)
• Density: 1.119 g/mL at 25 °C(lit.)
• refractive index: n20/D 1.472(lit.)
• Flash point: 99 °F
• storage temp.: 2-8°C
• solubility: water: soluble(lit.)
• form: Liquid
• color: Clear colorless to light yellow or slightly pink
• Merck: 14,6062
• BRN: 107939
• InChIKey: GSLDEZOOOSBFGP-UHFFFAOYSA-N
• CAS DataBase Reference: 547-65-9(CAS DataBase Reference)
• NIST Chemistry Reference: «alpha»-Methylene-«gamma»-butyrolactone(547-65-9)
• EPA Substance Registry System: 2(3H)-Furanone, dihydro-3-methylene- ( (547-65-9)

Description and Uses

Tulipalin A is an unsubstituted -methylene-butyrolaetone eontained in the sap of tulips, Alstroemeria spp. (Peruvian lily) and Erythronium (dog tooth violet, fawn-lily). Tulipalin B seems to have a weak capacities to sensitize.

α-Methylene-γ-butyrolactone (Tulipane) was used to develop optically active spiro-[butyrolactone-pyrrolidine] via Cu(I)-catalyzed exo-selective 1,3-dipolar cycloaddition of azomethine ylides.

Safety

• Symbol(GHS): GHS02,GHS07
• Signal word: Warning
• Hazard statements: H226-H317-H412
• Precautionary statements: P210-P233-P240-P273-P280-P303+P361+P353
• Hazard Codes: Xn
• Risk Statements: 42/43-52/53-10
• Safety Statements: 23-36/37-61-45
• RIDADR: 1993
• WGK Germany: 3
• RTECS: LU3580400
• F: 1-8-10
• HazardClass: 3.2
• PackingGroup: III
• HS Code: 29349990