- Cyclobutyl bromide
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- $0.00 / 1KG
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2026-02-26
- CAS:4399-47-7
- Min. Order: 1KG
- Purity: 98%min
- Supply Ability: 30tons/month
- Cyclobutyl bromide
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- $0.00 / 1KG
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2026-01-30
- CAS:4399-47-7
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 20 mt
- Bromocyclobutane
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- $10.00 / 1bag
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2025-12-09
- CAS:4399-47-7
- Min. Order: 1bag
- Purity: 99
- Supply Ability: 100kg/week
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| | Cyclobutyl bromide Basic information |
| | Cyclobutyl bromide Chemical Properties |
| Boiling point | 108 °C(lit.) | | density | 1.434 g/mL at 25 °C(lit.) | | refractive index | n20/D 1.479(lit.) | | Fp | 72 °F | | storage temp. | Keep in dark place,Sealed in dry,2-8°C | | solubility | Chloroform (Slightly), Methanol (Slightly) | | form | Liquid | | color | Clear colorless | | Water Solubility | Insoluble | | Sensitive | Light Sensitive | | BRN | 1900415 | | InChI | InChI=1S/C4H7Br/c5-4-2-1-3-4/h4H,1-3H2 | | InChIKey | KXVUSQIDCZRUKF-UHFFFAOYSA-N | | SMILES | C1(Br)CCC1 | | CAS DataBase Reference | 4399-47-7(CAS DataBase Reference) | | NIST Chemistry Reference | Cyclobutyl bromide(4399-47-7) |
| Hazard Codes | Xi,Xn | | Risk Statements | 10-36/37/38-20/21/22 | | Safety Statements | 26-36-36/37/39-16 | | RIDADR | UN 1993 3/PG 2 | | WGK Germany | 3 | | F | 8 | | HazardClass | 3 | | PackingGroup | II | | HS Code | 29038900 | | Storage Class | 3 - Flammable liquids | | Hazard Classifications | Eye Irrit. 2
Flam. Liq. 2
Skin Irrit. 2
STOT SE 3 |
| | Cyclobutyl bromide Usage And Synthesis |
| Chemical Properties | CLEAR COLOURLESS LIQUID | | Uses | Cyclobutyl bromide is a cyclopentyl compound that has an hydroxyl group.
It is a potent inhibitor of the CB2 receptor, which is primarily
expressed on cells of the immune system. Cyclobutyl bromide has been
shown to inhibit the uptake of uv light and also has anti-inflammatory
properties. Studies have confirmed that this drug inhibits the
production of cytokines and chemokines in chronic bronchitis patients,
as well as other inflammatory diseases such as rheumatoid arthritis. | | Synthesis | The general procedure for the synthesis of cyclobutyl bromide and bromomethyl cyclopropane using hydroxymethyl cyclopropane as a starting material was as follows: first, a stirrer and thermometer were assembled on a 30 mL three-necked flask. 0.36 g (5.0 mmol) of hydroxymethylcyclopropane and 5 mL of chloroform were added to the flask, and the mixture was subsequently cooled to 10 °C with stirring. Then, 2.77 g (6.5 mmol) of a 19% hydrogen bromide/1,4-dioxane solution was slowly added dropwise. After the dropwise addition, the reaction mixture was heated to room temperature and stirring was continued for 2 hours. Upon completion of the reaction, the reaction mixture was analyzed by gas chromatography (GC) to afford cyclobutyl bromide and bromomethyl cyclopropane in 74% overall yield. In addition, the reaction produced bromocyclobutane (9% yield) and 4-bromo-1-butene (2% yield) as isomers. | | References | [1] Patent: JP2017/14124, 2017, A. Location in patent: Paragraph 0033
[2] European Journal of Medicinal Chemistry, 1980, vol. 15, # 6, p. 571 - 573
[3] Patent: JP5979791, 2016, B2. Location in patent: Paragraph 0036-0038; 0042-0052 |
| | Cyclobutyl bromide Preparation Products And Raw materials |
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