|  | |  |  | BETA-BUTYROLACTONE Basic information | 
 | Product Name: | BETA-BUTYROLACTONE |  | Synonyms: | β-Butyrolactone,β-Methyl-β-propiolactone, 3-Hydroxybutyric acid β-lactone, 4-Methyl-2-oxetanone;4-Methyl-2-oxetanone
beta-Methylpropiolactone;beta-Butyrolactone 98%;b-Methyl-b-propiolactone;(R,S)-4-Methyl-oxetan-2-one;2-Oxetanone, 4-methyl-;3-Hydroxybutanoic acid, beta-lactone;3-hydroxybutanoicacid,beta-lactone |  | CAS: | 3068-88-0 |  | MF: | C4H6O2 |  | MW: | 86.09 |  | EINECS: | 221-330-3 |  | Product Categories: | Oxetanes;Simple 4-Membered Ring Compounds |  | Mol File: | 3068-88-0.mol |  |  | 
|  |  | BETA-BUTYROLACTONE Chemical Properties | 
 | Melting point | −43.5 °C(lit.) |  | Boiling point | 71-73 °C29 mm Hg(lit.) |  | density | 1.056 g/mL at 25 °C(lit.) |  | refractive index | n20/D 1.411(lit.) |  | Fp | 140 °F |  | form | neat |  | color | Colorless to Almost colorless |  | Water Solubility | 132.7g/L(18 ºC) |  | Stability: | Stable. Incompatible with strong bases, strong oxidizing agents. Flammable. |  | CAS DataBase Reference | 3068-88-0(CAS DataBase Reference) |  | IARC | 2B (Vol. 11, Sup 7, 71) 1999 |  | EPA Substance Registry System | .beta.-Butyrolactone (3068-88-0) | 
| Hazard Codes | Xn |  | Risk Statements | 36/38-40 |  | Safety Statements | 26-36 |  | RIDADR | UN 1993 3/PG 3 |  | WGK Germany | 3 |  | RTECS | RQ8050000 |  | HS Code | 2932.20.5050 |  | HazardClass | 3.2 |  | PackingGroup | III | 
|  |  | BETA-BUTYROLACTONE Usage And Synthesis | 
 | Chemical Properties | colourless liquid |  | Uses | β-Butyrolactone was used in the preparation of (3- O -[oligo-(3-hydroxybutyrate ester)] fluorescein, fluorescein derivative of poly(3-hydroxybutyrate) via anionic polymerization. |  | Uses | β-Butyrolactone was used in the preparation of (3-O-[oligo-(3-hydroxybutyrate ester)] fluorescein, fluorescein derivative of poly(3-hydroxybutyrate) via anionic polymerization. |  | Definition | ChEBI: Beta-Butyrolactone is a beta-lactone. |  | General Description | Clear colorless liquid with an acetone-like odor. |  | Air & Water Reactions | Highly flammable. Water soluble |  | Reactivity Profile | BETA-BUTYROLACTONE is incompatible with strong oxidizers and strong bases. BETA-BUTYROLACTONE is hydrolyzed by water and aqueous alkali. |  | Hazard | Possible carcinogen, neoplastigen; tumori-
genmutagen, irritant, slightly toxic. |  | Fire Hazard | BETA-BUTYROLACTONE is combustible. |  | Safety Profile | Suspected carcinogen 
with experimental carcinogenic, 
neoplastigenic, and tumorigenic data. Mildly 
toxic by ingestion. A moderate skin irritant. 
Mutation data reported. When heated to | 
|  |  | BETA-BUTYROLACTONE Preparation Products And Raw materials | 
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