| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Email: |
saleschina@alfa-asia.com |
- 4-BROMO-1-BUTYNE
-
-
2026-08-18
- CAS:38771-21-0
- Min. Order: 1KG
- Purity: 98%
- Supply Ability: 1000 KG
- 4-BROMO-1-BUTYNE
-
-
2025-04-04
- CAS:38771-21-0
- Min. Order: 1kg
- Purity: 98%
- Supply Ability: 1Ton
- 4-Bromo-1-butyne
-
- $15.00
-
2021-07-13
- CAS:38771-21-0
- Min. Order: 1KG
- Purity: 99%+ HPLC
|
| | 4-BROMO-1-BUTYNE Basic information |
| Product Name: | 4-BROMO-1-BUTYNE | | Synonyms: | 4-BROMO-1-BUTYNE, 98%4-BROMO-1-BUTYNE, 98%4-BROMO-1-BUTYNE, 98%4-BROMO-1-BUTYNE, 98%;4-BROMO-1-BUTYNE;4-Bromo-1-butyne,1-Bromo-3-butyne;1-Bromo-3-butyne;3-Butynyl Bromide;4-BroMo-1-butyne 97%;4-Bromo-1-butyne >;4-Bromo-1-butyne, 97%, for synthesis | | CAS: | 38771-21-0 | | MF: | C4H5Br | | MW: | 132.99 | | EINECS: | | | Product Categories: | Acetylenes;Functionalized Acetylenes | | Mol File: | 38771-21-0.mol |  |
| | 4-BROMO-1-BUTYNE Chemical Properties |
| Boiling point | 110 °C | | density | 1.417 g/mL at 25 °C | | refractive index | 1.481 | | Fp | 24 °C | | storage temp. | Inert atmosphere,Store in freezer, under -20°C | | solubility | Chloroform (Slightly), Methanol (Slightly) | | form | clear liquid | | color | Colorless to Light yellow to Light orange | | Water Solubility | Immiscible with water. | | InChI | InChI=1S/C4H5Br/c1-2-3-4-5/h1H,3-4H2 | | InChIKey | XLYOGWXIKVUXCL-UHFFFAOYSA-N | | SMILES | C#CCCBr |
| Hazard Codes | T | | Risk Statements | 10-25-43 | | Safety Statements | 36/37-45 | | RIDADR | UN 1992 6.1(3) / PGIII | | WGK Germany | 3 | | HazardClass | 3 | | PackingGroup | III | | HS Code | 29039990 | | Storage Class | 3 - Flammable liquids | | Hazard Classifications | Acute Tox. 3 Oral
Flam. Liq. 3
Skin Sens. 1 |
| | 4-BROMO-1-BUTYNE Usage And Synthesis |
| Chemical Properties | Yellow liquid | | Uses | 4-Bromo-1-butyne is used for pharmaceutical intermediates. | | Uses | 4-Bromo-1-butyne is used as a reactant in the synthesis of:
- Macrocycles by cobalt-mediated [2+2+2] co-cyclotrimerization.
- 2,4,5-trisubstituted oxazoles by a gold-catalyzed formal [3+2] cycloaddition.
- Intramolecular 1,3-dipolar cycloaddition to synthesize 1,3,4-oxadiazoles.
- Lactones bearing alkynes for reductive cyclization in the preparation of azulene derivatives.
- Substituted α-pyrones by gold-catalyzed coupling reactions.
| | Synthesis | 4-Bromo n-butyne can be obtained by reacting 3-butyn-1-ol with phosphorus tribromide. |
| | 4-BROMO-1-BUTYNE Preparation Products And Raw materials |
|