| | Identification | More |  | [Name] 
 3-Methylenedihydro-2(3H)-furanone
 |  | [CAS] 
 547-65-9
 |  | [Synonyms] 
 2-METHYLENEBUTYROLACTONE
 3-METHYLENEDIHYDRO-2(3H)-FURANONE
 ALPHA-METHYLENE-GAMMA-BUTYROLACTONE
 DIHYDRO-3-METHYLENE-2(3H)-FURANONE
 TULIPANE
 2(3H)-Furanone, dihydro-3-methylene-
 alpha-Methylene butyrolactone
 Tulipalin A
 ALPHA-METHYLENE-GAMMA-BUTYROLACTONE, STA B.
 Stabilizedwith2,6-Ditert-butyl-p-cresol
 alpha-Methylene-gamma-butyrolactone, stabilized, 95%
 α-methylene-γ-butyrolactone
 2-METHYLENE-4-BUTYROLACTONE
 3-methylideneoxolan-2-one
 alpha-Methylene-gamma-butyrolactone (stabilized with 2,6-Di-tert-butyl-p-cresol)
 3-Methylenedihydro-2(3H)-furanone,  Tulipane
 2-Methylene-g-butyrolactone
 4,5-Dihydro-3-methylene-2(3H)-furanone
 a-Methylenebutyrolactone
 Tetrahydro-3-methylene-2-furanone
 |  | [EINECS(EC#)] 
 208-931-6
 |  | [Molecular Formula] 
 C5H6O2
 |  | [MDL Number] 
 MFCD00005407
 |  | [Molecular Weight] 
 98.1
 |  | [MOL File] 
 547-65-9.mol
 | 
 | Chemical Properties | Back Directory |  | [Appearance] 
 clear colourless to light yellow or slightly pink
 |  | [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.)
 
 |  | [Fp ] 
 99 °F
 
 |  | [storage temp. ] 
 2-8°C
 
 |  | [solubility ] 
 water: soluble(lit.)
 |  | [form ] 
 Liquid
 |  | [color ] 
 Clear colorless to light yellow or slightly pink
 |  | [Water Solubility ] 
 water: soluble(lit.)
 |  | [Merck ] 
 6062
 |  | [BRN ] 
 107939
 |  | [Contact allergens] 
 Tulipalin A is the unsubstituted a-methylene-g-butyrolactone
contained in the sap of damaged tulips
(Liliaceae family) and Alstroemeria (Alstroemeriaceae
family). Tulipalin B, due to hydrolysis of tuliposide B,
seems to have a weak sensitizing capacity.
 |  | [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)
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 clear colourless to light yellow or slightly pink
 |  | [Uses] 
 Very reactive Michael-acceptor; the α-methylene-γ-butyrolactone ring system exists in many natural products of biological interest
 |  | [Definition] 
 ChEBI: A butan-4-olide having a methylene group at the 3-position.
 |  | [Description] 
 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.
 |  | [storage] 
 Store at -20°C, protect from light, stored under nitrogen
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 Xn
 |  | [Risk Statements ] 
 R42/43:May cause sensitization by inhalation and skin contact .
 |  | [Safety Statements ] 
 S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
 S36/37:Wear suitable protective clothing and gloves .
 |  | [RIDADR ] 
 1993
 |  | [WGK Germany ] 
 3
 
 |  | [RTECS ] 
 LU3580400
 |  | [F ] 
 1-8-10
 |  | [HazardClass ] 
 3.2
 |  | [PackingGroup ] 
 III
 |  | [HS Code ] 
 29349990
 | 
 |  |