High purity Ethyl 4-bromobutanoate 2969-81-5

Basic Info

Model No.: CAS NO 2969-81-5

CAS:: 80-58-0

Name:: 2-Bromobutyric Acid

MF:: C4H7BrO2

MW:: 167.00100

Density:: 1.567 G/mL At 25 °C(lit.)

Bp:: 99-103 °C10 Mm Hg(lit.)

FP:: 230 °F’>>230 °F

Additional Info

Packaging:  in 25kg drum

Productivity: 10000kg per month

Brand: zhishang

Transportation: Ocean,Land,Air

Place of Origin: Shandong, China (Mainland)

Supply Ability: in stock

Certificate: ISO CE

HS Code: 2969-81-5

Port: Shanghai,Tianjin,Qingdao

Product Description

High purity Ethyl 4-bromobutanoate 2969-81-5

Ethyl 4-Bromobutanoate is a building block which has been used as a reactant for the preparation of firefly luciferase inhibitor-conjugated peptide derivatives.

production method
Butyric acid derived from bromination. Put n-butyric acid and phosphorus trichloride into the enamel pot first, add bromine slowly when heated to 100°C, control the temperature at 100-120°C, keep the temperature for 8 hours after the addition, and catch hydrobromic acid for 18 hours. Washed, distilled to get the finished product.production method
1. Method: Add γ-butyrolactone to a reaction flask equipped with a stirrer, thermometer, and aeration tube
(2) 200 g (2.33 mol) of anhydrous ethanol (375 mL) was cooled in an ice bath to 0° C., and dry hydrogen bromide gas was introduced until the reactants did not change, and it took about 2 h. Place at 0°C for 24h. The reaction was poured into 1 L of cold water. After stirring well, the organic layer was separated and the aqueous layer was extracted twice with 10 mL of ethyl bromide. Combine the organic layers, and ethanol is washed with 2% potassium hydroxide solution, dilute hydrochloric acid, and water, and dried over anhydrous sodium sulfate. After the solvent is recovered, fractional distillation under reduced pressure is performed to collect a fraction of 97 to 99°C/3.3 kPa to obtain γ-bromo. Ethyl butyrate
(1) 350 to 380 g, yield 77% to 84%.
physico-chemical property
Appearance and traits: slightly yellow liquid
Density: 1.363 g/mL at 25 °C (lit.)
Boiling point: 80-82 °C 10 mm Hg (lit.)
Flash point: 195 °F Refractive index: n20/D 1.456 (lit.)
Water solubility: immiscible
Stability: Stable under normal temperatures and pressures.
Storage conditions: Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Steam pressure: 0.362mmHg at 25°C

Our Services

1.Cooperate with research institutions, we strictly control the process from raw material to finished product.

2.The customer comes first, we provide reasonable price, high quality product and prompt shipment.

3.We can send the goods to your delivery address directly. It is relatively safe and fast. We have ready goods in stock.
4.Quick and clear response to customers questions.
Warm after sale service, we will help to solve the problems in your usage.
5.We could make our price discount if you place a substantial order with us.


Q1. Are you a manufacturer

Answer: Yes, we have our own factory called [ZhiShang Industry Group “, we export by ShandongZhishangchemical Co., Ltd. 

Q2. Do you have GMP or DMF

Answer: Yes, we have GMP certificate for some products, and we can provide DMF as well.

Q3. What information should I let you know if I want to get a quotation

Answer: -Quality you require, eg. Assay, Purity, or single impurity

-Quantity you need

-Standard you want, such as USP, EP, JP etc.

Q4. How to make the payment

Answer: Escrow and T/T in advance are highly recommended. We can accept Western Union, Money Gram and Paypal as well

Q5. When will you deliver the goods

Answer: For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment. 

Q6. How will you deliver the goods

Answer: We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, China Air Post. For container products, we can do sea shipping.

You also can choose your own shipping forwarder.

Q7. When will we receive the goods

Answer: For samples, we will send by TNT/DHL/FEDEX/UPS express, usually it takes about 3-5 to reach you; for larger orders, it will take about 7 -10days at most. 

Q8. What if we find your products unsatisfied

Answer: We will send you a COA (Certificate of Analysis) to you first for you to confirm the quality, but if you find our products not confirm with the COA after you receive it, please show us your test result, we will refund you once we confirm that.

Product expansion

1> Cosmetic Raw Materials: Cosmetics is a variety of raw materials through a reasonable deployment of processing from the compound mixture. Cosmetics with a wide range of raw materials, different performance. According to the raw material properties and uses of cosmetics, can be divided into matrix materials and auxiliary raw materials in two categories. The former is a class of cosmetics in the main raw materials, cosmetics in the possession of a large proportion of the cosmetics play a major role in the role of the material. The latter is the formation of cosmetics, stability or to give color, smell and other characteristics of the role of these substances in the cosmetic formula is not used, but it is extremely important. Cosmetics are natural, synthetic or extracted from the role of different substances as raw materials, by heating, mixing and emulsification and other production processes processed from the chemical mixture.

2> Active Pharmaceutical Ingredients(API): API refers to the raw materials in the production of various types of preparations, which is the active ingredient in powder,crystal and paste for medicine use through chemical synthesis,plant extract, and preparations of biotechnology institute.It is one substance or mixture during the medicine making period, it can not be taken directly by patients.

3> Fragrance And Spices: Spice is a substance that can be scented by smelling or scented by taste, and is the raw material for the preparation of the fragrance. Spices are an important part of fine chemicals, it is composed of natural spices, synthetic spices and single fragrance.

4> Organic Raw Material: Intermediates are also known as organic intermediates. The use of coal tar or petroleum products as raw materials to produce dyes, pesticides, pharmaceuticals, resins, additives, and other intermediates.

5> Chemicals Used In Paints: Paint, the traditional Chinese name is paint. So-called coating is coated on the surface of the object that be protected or be adornment, and with the continuous film coating to form strong adhesion, usually in resin, or oil, or emulsion is given priority to, add or not add pigment, filler, add the corresponding additives, organic solvents or water preparation of viscous liquid.

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