- 4-Bromo-1-butanol
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- $10.00
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2026-09-13
- CAS:33036-62-3
- Min. Order: 1ASSAYS
- Purity: 99%
- Supply Ability: 1 ton
- 4-Bromo-1-butanol
-
-
2026-06-30
- CAS:33036-62-3
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 10000KGS
- 4-Bromo-1-butanol
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- $1.00
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2024-08-14
- CAS:33036-62-3
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 20T
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| | 4-Bromo-1-butanol Chemical Properties |
| Boiling point | 56-58 | | density | 1.68 | | Fp | 7 °C | | refractive index | 1.5035 | | storage temp. | -20°C | | solubility | Chloroform (Sparingly), Methanol (Sparingly) | | form | Liquid | | pka | 14.98±0.10(Predicted) | | color | Yellow | | Water Solubility | insoluble | | Sensitive | Moisture & Light Sensitive | | BRN | 1839430 | | InChI | InChI=1S/C4H9BrO/c5-3-1-2-4-6/h6H,1-4H2 | | InChIKey | SIJLYRDVTMMSIP-UHFFFAOYSA-N | | SMILES | C(O)CCCBr | | CAS DataBase Reference | 33036-62-3(CAS DataBase Reference) | | NIST Chemistry Reference | 1-Butanol, 4-bromo-(33036-62-3) |
| Hazard Codes | F,Xi,Xn | | Risk Statements | 11-36/37/38-22 | | Safety Statements | 26-37/39-16 | | RIDADR | UN 1987 3/PG 2 | | WGK Germany | 3 | | F | 8-10 | | Hazard Note | Irritant/Flammable | | HazardClass | 3 | | PackingGroup | III | | HS Code | 29055998 | | Storage Class | 3 - Flammable liquids | | Hazard Classifications | Eye Irrit. 2
Flam. Liq. 2
Skin Irrit. 2
STOT SE 3 |
| | 4-Bromo-1-butanol Usage And Synthesis |
| Preparation | 200 kg of tetrahydrofuran and 19 kg (0.07 eq) of concentrated sulfuric acid were added sequentially to a 1000 L reactor. The system temperature was controlled at 2 ± 2 °C. 420 kg (0.9 eq) of 48% hydrobromic acid aqueous solution was slowly added dropwise. After the addition was complete, the temperature was raised to 80 ± 2 °C and maintained for 3 h. After the reaction was completed, the temperature was lowered to 0 ± 2 °C. The pH of the system was adjusted to 7-8 with 23 kg (0.1 eq) of sodium bicarbonate. Extraction was performed, the organic phase was washed, and the mixture was concentrated to obtain 286 kg of the oily product 4-bromo-1-butanol, with a yield of 67.5% and a gas chromatographic purity (GC) of 97.0%. | | Description | 4-Bromo-1-butanol can be prepared by azeotropic distillation of butane-1,4-diol with 47% HBr with a yield of about 65%.1 4-Bromo-1-butanol can be used to prepare 2-(4-bromo-butoxy)-tetrahydro-pyran by reacting with 3,4-dihydro-2H-pyran in the presence of amberlyst 15 and the menstruum hexane.1 It reacts with dihydropyran to prepare tetrahydropyranyl ethers.2
| | Chemical Properties | Clear colorless to brown liquid | | Uses | 4-Bromo-1-butanol is used to prepare 2-(4-bromo-butoxy)-tetrahydro-pyran by reacting with 3,4-dihydro-2H-pyran in the presence of amberlyst 15 as a catalyst. It reacts with dihydropyran to prepare tetrahydropyranyl ethers. | | Definition | ChEBI: 4-Bromo-1-butanol is a primary alcohol. |
| | 4-Bromo-1-butanol Preparation Products And Raw materials |
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