Hubei Shinrezing Pharmaceutical Technology Co.,Ltd

China professional manufacturer and supplier of Pharmaceutical Intermediates, raw steroid powder, peptides, sarm powders etc.

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High Pure Active Pharmaceutical Intermediates 2-Bromo-2',4'-Dichloroacetophenone CAS 2631 72 3

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High Pure Active Pharmaceutical Intermediates 2-Bromo-2',4'-Dichloroacetophenone CAS 2631 72 3

China High Pure Active Pharmaceutical Intermediates 2-Bromo-2',4'-Dichloroacetophenone CAS 2631 72 3 supplier
High Pure Active Pharmaceutical Intermediates 2-Bromo-2',4'-Dichloroacetophenone CAS 2631 72 3 supplier High Pure Active Pharmaceutical Intermediates 2-Bromo-2',4'-Dichloroacetophenone CAS 2631 72 3 supplier

Large Image :  High Pure Active Pharmaceutical Intermediates 2-Bromo-2',4'-Dichloroacetophenone CAS 2631 72 3

Product Details:

Place of Origin: china
Brand Name: shinrezing
Certification: ISO9001
Model Number: 2631-72-3

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: USD/kg
Packaging Details: 25 kg / cardboard barrels or as required
Delivery Time: 3-5 days
Payment Terms: T/T, L/C,Negotiation
Supply Ability: 20 tons/month
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Detailed Product Description
Product Name: 2-Bromo-2',4'-dichloroacetophenone CAS NO: 2631-72-3
Appearance: White Powder Usage: Pharmaceutical Intermediates
Assay: 99% Price: Egotiatable

2-Bromo-2',4'-dichloroacetophenone 2,4-Dichlorophenacyl bromide CAS 2631-72-3 EINECS 220-116-7

Product Description

 

2-bromo-2 ', 4'-dichloroacetophenone as a white powder, m.p.58 ~ 60 ℃, soluble in organic solvents, insoluble in water. Synthetic imazalil, propiconazole, a key intermediate azaconazole, B ring azoles azole fungicide. There are two methods for their preparation.


1, 2,4-dichloro-acetophenone as starting material, dissolved in chloroform, was added dropwise bromine, extends below the surface of the lower end of the dropper, was added dropwise with stirring, followed by stirring at room temperature when bromine dropwise addition 2h, was heated with stirring at reflux for 2h, the reaction was stopped, the solvent recovered by distillation of chloroform and cooled to give white crystals of ω- bromo-2,4-dichloro acetophenone.


2, p-dichlorobenzene for raw materials, first-dichlorobenzene and mixed bromo acetyl chloride in the mixture by fractional added anhydrous aluminum chloride, at below 50 ℃ for several hours, and then cooling, into ice water and layers were separated and the aqueous layer was extracted with dichloromethane and the combined organic layer, removing solvent to give ω--bromo-2,4-dichloro-acetophenone.Storage features: low temperature warehouse, ventilated and dry. Away from fire, heat source. Prevent direct sunlight. Use and storage according to specifications, the decomposition does not occur, avoid contact with the oxide.

 

This product is slightly hazardous for water Do not allow undiluted product or large quantities to reach ground water, water course or sewage system, without government permission, Do not allow material discharged into the surrounding environment. If used and stored according to specifications. No decomposition. Holding receptacle seal in cool, dry place to ensure that the workplace has a good ventilation or exhaust.

 

Safety phrases:irCauses burns.ritating substance. Irritating to eyes, respiratory system and skin. Avoid contact with skin and eyes.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.Highly flammable. Cause burns. Away from fire.I company for the production plant, complete production equipment and testing equipment. 

 

Quick Detail

 

Product name 2-Bromo-2',4'-dichloroacetophenone
Other name 2,4-Dichlorophenacyl bromide
CAS register number 2631-72-3
EINECS 220-116-7
Molecular formula C8H5BrCl2O
Molecular weight 267.93
Molecular structure High Pure Active Pharmaceutical Intermediates 2-Bromo-2',4'-Dichloroacetophenone CAS 2631 72 3
Melting point 58-60°C
Assay 99%

 

COA:

 

Test Analysis Standard Results
Appearance White powder Conform
Assay ≥99% 99.39%
Melting point 58-60°C 58-60°C
Loss On Drying ≤0.5% 0.25%
Conclusion   Conform

 

Our advantages

  1. shinrezing pharmaceutical Technology Co., Ltd is is a production factory.
  2. Our products have exported to Germany, Norway, Poland, Finland, Spain, UK, France, Russia, USA, Australia, Japan, Korea and many other countries.
  3. Professional team special for package and shipment and staring on tracking code 24hours for customs pass guaranteed.
  4. Most products are in stock.
  5. High quality, good price, fast and safety delivery. Shipment by DHL, TNT, FEDEX, HKEMS, UPS, etc.

 

 

Contact Details
Hubei Shinrezing Pharmaceutical Technology Co.,Ltd

Contact Person: John wu

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