WHAT AP:+86=181=2631=4766
  Wickr : chemical888
  We guarantee that 100% of your parcel passes through the United States, Britain, Australia, Canada, Mexico, France, Germany, Spain, Belgium, Sweden, Poland, and Russia. We have large stocks in warehouses in the United States, Canada, Germany, and Mexico, and we can ship directly from overseas warehouses.
We have powerful customs clearance agencies in these countries, and our customs clearance company will clear your parcel without any customs issues, sometimes even 1000 kg. Door to door service DDP service. To ensure 100% receipt of your package, if there are any customs issues, we are willing to reissue your package free of charge. Let you have a good experience of our strong shipping capabilities.
We have many customers in the United States, Canada, Mexico, Australia, United Kingdom, and European Union countries and retain long-term cooperation. Provide a large number of high-quality products. They made a lot of money. I am sure we can make more money together. There is money to have glory.
Acyclovir is a synthetic analogue of deoxyguanosine in which the carbohydrate moiety is acyclic. Because of this difference in structure as compared to other antiviral compounds (idoxuridine, vidarabine, and trifluridine), acyclovir possesses a unique mechanism of antiviral activity. The mode of action of acyclovir consists of three consecutive mechanisms. The first of these mechanisms involves conversion of the drug to active acyclovir monophosphate within cells by viral thymidine kinase. This phosphorylation reaction occurs faster within cells infected by herpesvirus than in normal cells, because acyclovir is a poor substrate for the normal cell thymidine kinase. Acyclovir is further converted to di- and triphosphates by a normal cellular enzyme called guanosine monophosphate kinase. In the second mechanism, viral DNA polymerase is competitively inhibited by acyclovir triphosphate with a lower median inhibition concentration (IC50) than that for cellular DNA polymerase. Acyclovir triphosphate is incorporated into the viral DNA chain during DNA synthesis. Because acyclovir triphosphate lacks the 3′-hydroxyl group of a cyclic sugar, it terminates further elongation of the DNA chain. The third mechanism depends on preferential uptake of acyclovir by herpes-infected cells as compared to uninfected cells, resulting in a higher concentration of acyclovir triphosphate and leading to a high therapeutic index between herpes-infected cells compared to normal cells. Acyclovir is active against certain herpesvirus infections. These viruses induce virus-specific thymidine kinase and DNA polymerase, which are inhibited by acyclovir. Thus, acyclovir significantly reduces DNA synthesis in virus-infected cells without significantly disturbing the active replication of uninfected cells

    Product packaging: We provide different specifications of packaging according to customer needs.  Meet all the needs of customers.  Different packaging is used for different chemical powders and liquids.  We can also do private weiboz with aluminum foil bag sealed vacuum packaging.  Can provide 1Kg 2kg 5Kg 10kg 20kg 25kg 200kg different specifications of packaging.  Use high-hardness cartons and filling materials to avoid product damage during transportation.  Customers receive satisfactory products.
   Product transportation: We have warehouses in the United States, Canada, Mexico, and Australia, and we can ship from overseas warehouses.  Improve our delivery efficiency.  Let customers receive packages quickly.  In addition, we have cooperation with international express FEDEX, UPS, TNT EMS, etc. In addition, we are better at using air dedicated lines for transportation.  Professional transportation of chemical products and other international logistics.  The package can be received safely.  No need for customers to do customs clearance information.  We provide DDP service.  Door to door service.  There is no need to sign for the package in person.  We have more than ten years of experience in chemical trading.

      Hong Kong Excellence Biological Technology Co., Ltd. is located in Guangdong Province, China. As one of the most dynamic factories and foreign trade companies in the Chinese market, we have a registered capital of RMB 5 million. It mainly produces and develops local anesthetics, pharmaceutical intermediates, organic solvents, and steroids and other APIs. In addition, we have a self-developed production line pharmaceutical raw material production plant, and we also have a pharmaceutical raw material research and development test center. We also cover the custom synthesis business of various organic compounds as a supplement. We can synthesize almost all chemicals.
Our customers are all over the world, mainly selling in the United States, Canada, Australia, the United Kingdom, the Netherlands, Germany, France and other EU countries, Southeast Asia, South America, and Oceania. We also have many customers.
Our business is based on honesty and mutual trust. Sincerely look forward to establishing long-term mutually beneficial business relationships with customers around the world.
 

A1 Quality control: We take quality as our life. We strictly control the quality of each process and establish a complete quality control system. We promise to bring 100% best quality products to consumers.

A2 Trade capacity: We focus on chemical, biological medicine international trade for more than 10 years. Has the abundant product and the trade ability. Cooperative customers all over the world, good reputation.

A3 transport capacity: We have professional freight agents, customs clearance agencies set up in the destination. Deliver your package safely. According to the customer's transport needs can choose: FEDEX UPS TNT DHL air charter and sea.

A4 carefully packing: 1kg, 5kg, 15kg, 20kg, 25kg can be packed in different specifications. Packaging can be customized according to customer requirements. Aluminum foil bag and carton. Ensure the safety of transportation. And free samples are available.

A5 Quality service: We have a professional customer service team and after-sales team. Being proficient in each language will guarantee your after-sale service

Q1:Can i get some samples?
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.

Q2: Which kind of payment terms do you accept?
A: Payment by T/T, Western Union or Bitcoin.

Q3:Which transportation do we use?
A:Samples could be DHL, UPS, TNT, EMS, Fedex, and so on. For mass orders, it will be delivered by air or sea.

Q4: How about your delivery time?
Generally, it will take 3 to 5 days after receiving your advance payment.

Q5: How do you treat quality complaint?
A: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.

Q6:How can we trust you?
A: You are always warm welcomed to visit us at any time.Before we start B2B, MIC has audited our company on-spot and approved our credit.

Q7:Do you test all your goods before delivery?
A:Yes, we have 100% test before delivery,International Authorized Third-Party Test for the products if you need are highly welcomed.
 

WHAT AP:+86=181=2631=4766
Wickr : chemical888