β-bromophenylethane is an important intermediate for the synthesis of high efficiency brominated flame retardant polystyrene brominated. It is also commonly used in the preparation of organic synthesis intermediates.For example, β-bromophenylethane can be used to prepare the intermediate 4-(4-phenylbutoxy) benzoic acid.

Prenast was first developed by Ono in Japan as an anti-asthma drug, and was marketed in Japan in 1995. In 1999, it was found to treat allergic rhinitis.Prenast is leukotriene C4/D4 receptor antagonist antibody (LTRAS) with very low toxicity. It can selectively inhibit the leukotriene skin activity of airway smooth muscle, and has almost no effect on arachidonic acid metabolic enzymes. At the same time, it has no antagonistic effect on acetylcholine and 5-hydroxytryptamine, and has significant inhibition on LTC4, LTD4 and LTE4.

Product Packing:
Liquid:
25kg per unit
170kg per unit
1 ton per unit
Iron drum & plastic drum packaging

Solid:
1kg per bag
25kg per bag/drum
Plastic bag & kraft paper bag & fiber drum &  aluminum foil 

Product SHIPPING:
Transit could be DHL,UPS,TNT,EMS,Fedex,and so on.
For mass orders, it will be delivered by air or sea.
Depending on your location, please allow 1-5 business days for your order to arrive.
For small order, please expect 3-7 days by UPS DHL EMS.
For mass order, please allow 5-8 days by Air, 15-30 days by Sea.

Hebei wego import and export Co. LTD  is located in Hebei province of China.Our company has strong technical force, advanced equipment, strict quality management system and high-quality after-sales service, all for customer satisfaction, all for the long-term healthy development of enterprises.There are disinfection products, food grade additives, industrial grade products, fertilizer grade products and other series.We can provide all kinds of materials needed in the world, please let me know if you need, we use scientific and technological equipment to produce.

FAQ

Q1 Can i get some samples
A1 Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2 How to start orders or make payments
A2 Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
Payment by T/T, or Paypal or Escrow(Alibaba).
Q3 How to confirm the Product Quality before placing orders
A3 You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4 What's your MOQ
A4 Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5 How about delivery leadtime
A5 Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q6 Is there a discount
A6 Different quantity has different discount.
Q7 How do you treat quality complaint
A7 First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
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