Basic Info.
Model NO.
2969-81-5
Content
Standard
Usage
Laboratory Reagents, Analytical Reagents
Source
Extractive
Habit Appellation
Chemical Medicine
Application
Scientific Research, Health, Agriculture
Property
Amino Acid and Its Derivatives
Reaxys Rn
1749700
Beilstein
2, 283
Transport Package
Barreled
Specification
Customized
Trademark
Sincere Chemicals
Origin
China
HS Code
2915900090
Production Capacity
10tons/Month
Product Description
Product Description
Physicochemical Properties
Appearance and characteristics: Slightly yellow liquid
Density: 1.363 g/mL at 25 °C(lit.)
Boiling Point: 80-82 °C10 mm Hg(lit.)
Flash Point: 195 °F
Water Solubility: Immiscible
Refractive Index: n20/D 1.456(lit.)
Vapour Pressure: 0.362mmHg at 25°C
Storage Conditions/Storage Method: Sealed in a cool and dry environment
Stability-related: It does not decompose when used and stored in accordance with regulations.
Preparation Method
In a reaction bottle equipped with a stirrer, thermometer and vent tube, 200 g (2.33 mol) of γ -butyrolactone and 375mL of anhydrous ethanol were added, cooled to 0ºC in an ice salt bath, and dried hydrogen bromide gas was introduced until the reactants remained unchanged, which took about 2 hours. Leave it at 0ºC for 24h. Pour the reactant into 1L cold water, fully stir, separate the organic layer, and extract the water layer with bromoethane twice, 10mL each time. Combining organic layers, washing ethanol with 2% potassium hydroxide solution, dilute hydrochloric acid and water, drying with anhydrous sodium sulfate, recovering solvent, vacuum fractionating, and collecting fractions at 97 ~ 99ºC/3.3 kPa to obtain 350 ~ 380 g of ethyl γ-bromobutyrate (1) with a yield of 77% ~ 84%.
Uses
Ethyl 4- bromobutyrate is a carboxylate derivative, which is colorless, transparent to yellow liquid. It can be used as an intermediate of pesticides and medicines, and can be used in laboratory research and development and chemical production.
Security Information
Packing Grade: I; II
Risk Category: 6.1
HS Code: 2915900090
WGK_Germany (Classification List of Water Pollution Substances in Germany): 3
Hazard Class Code: R22; R36/37/38
Safety Instructions: S26-S36-S37/39
Safety sign: S26: In case of contact with eyes, rinse immediately with plenty of water and send to a doctor.
S36: Wear appropriate protective clothing.
Hazard Signs: Xn: Harmful
| Name: | Ethyl 4-bromobutyrate |
| Synonym: |
Ethyl gamma-bromobutyrate; ETHYL 4-BROMO-N-BUTYRATE; ETHYL GAMMA-BROMO-N-BUTYRATE |
| CAS: | 2969-81-5 |
| Formula: | C6H11BrO2 |
| Appearance: | Slightly yellow liquid |
| EINECS: | 221-005-6 |
| HS Code: | 2915900090 |
Physicochemical Properties
Appearance and characteristics: Slightly yellow liquid
Density: 1.363 g/mL at 25 °C(lit.)
Boiling Point: 80-82 °C10 mm Hg(lit.)
Flash Point: 195 °F
Water Solubility: Immiscible
Refractive Index: n20/D 1.456(lit.)
Vapour Pressure: 0.362mmHg at 25°C
Storage Conditions/Storage Method: Sealed in a cool and dry environment
Stability-related: It does not decompose when used and stored in accordance with regulations.
Preparation Method
In a reaction bottle equipped with a stirrer, thermometer and vent tube, 200 g (2.33 mol) of γ -butyrolactone and 375mL of anhydrous ethanol were added, cooled to 0ºC in an ice salt bath, and dried hydrogen bromide gas was introduced until the reactants remained unchanged, which took about 2 hours. Leave it at 0ºC for 24h. Pour the reactant into 1L cold water, fully stir, separate the organic layer, and extract the water layer with bromoethane twice, 10mL each time. Combining organic layers, washing ethanol with 2% potassium hydroxide solution, dilute hydrochloric acid and water, drying with anhydrous sodium sulfate, recovering solvent, vacuum fractionating, and collecting fractions at 97 ~ 99ºC/3.3 kPa to obtain 350 ~ 380 g of ethyl γ-bromobutyrate (1) with a yield of 77% ~ 84%.
Uses
Ethyl 4- bromobutyrate is a carboxylate derivative, which is colorless, transparent to yellow liquid. It can be used as an intermediate of pesticides and medicines, and can be used in laboratory research and development and chemical production.
Security Information
Packing Grade: I; II
Risk Category: 6.1
HS Code: 2915900090
WGK_Germany (Classification List of Water Pollution Substances in Germany): 3
Hazard Class Code: R22; R36/37/38
Safety Instructions: S26-S36-S37/39
Safety sign: S26: In case of contact with eyes, rinse immediately with plenty of water and send to a doctor.
S36: Wear appropriate protective clothing.
Hazard Signs: Xn: Harmful
