- BETA-BUTYROLACTONE
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- $1.00
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2019-07-06
- CAS:3068-88-0
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 100KG
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| | 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%;(R,S)-4-Methyl-oxetan-2-one;3-Hydroxybutanoic acid, beta-lactone;3-hydroxybutanoicacid,beta-lactone;3-Methyl-3-hydroxypropanoic acid lactone;dl-beta-hydroxybutyric acid 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 | | storage temp. | Storage temp. 2-8°C | | form | Liquid | | color | Colorless to Almost colorless | | Water Solubility | 132.7g/L(18 ºC) | | Stability: | Stable. Incompatible with strong bases, strong oxidizing agents. Flammable. | | Major Application | cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care | | InChI | InChI=1S/C4H6O2/c1-3-2-4(5)6-3/h3H,2H2,1H3 | | InChIKey | GSCLMSFRWBPUSK-UHFFFAOYSA-N | | SMILES | O1C(C)CC1=O | | 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 | | TSCA | TSCA listed | | HS Code | 2932.20.5050 | | HazardClass | 3.2 | | PackingGroup | III | | Storage Class | 3 - Flammable liquids | | Hazard Classifications | Carc. 2
Eye Irrit. 2
Flam. Liq. 3
Skin Irrit. 2 |
| | 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 | | Synthesis | B-butyrolactone has been synthesized by various methods, one by ()-epoxypropane synthesis, which is a single synthetic raw material with a yield higher than 90%, and the other by p-nitrophenyl isocyanate and ()-epoxypropane synthesis, which has a low yield compared to the first one, which is about 45%. In recent years, a study has provided a method for the catalytic preparation of B-butyrolactone over a cinchona base catalyst. First, a cinchona base and borane undergo a borohydride reaction to prepare to obtain a cinchona base-derived bifunctional catalyst; the catalyst catalyzes a [2+2] addition reaction of aldehydes and vinyl ketone compounds to obtain the target compound. The said catalyst is a novel bifunctional catalyst containing both Lewis base (N) and Lewis acid (B) active centers, and its application to catalyze the [2+2] addition reaction of aldehydes and vinyl ketones not only yields B-butyrolactone, but also a series of chiral B-butyrolactone derivatives by modulating the reactant loading groups. Compared with the previous preparation methods, the catalyst preparation process of this method is short, easy to operate and inexpensive. |
| | BETA-BUTYROLACTONE Preparation Products And Raw materials |
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