Hello,
This is  Xingtai Xingjiu New Material Technology 
We have rich export experience and 100% safe customs clearance.
Excellent after-sales service to solve problems for you.
Working with us will definitely bring you a quality buying experience.
We guarantee 100% of your packages pass through the USA, UK, Australia, Canada ,Brazil, France, Germany, Spain, Belgium, Sweden, the Netherlands.

Reagent Grade Streptozotocin CAS 18883-66-4
Streptozotocin is a natural compound produced by Streptococcus and is particularly toxic to insulin-producing islet B cells in the pancreas of mammals. It is a nitrosourea antibiotic.
STZ can form isocyanates in the body. Thereby, it binds to the nucleic acid protein, inhibits the activity of the DNA polymerase, and makes the damaged DNA difficult to repair.

 Why choose us?
1.Professional Supplier
Xingjiu is a professional supplier of industrial intermediates,cosmetics raw materails,solvents and other daily chemical raw materials.
2.Own factory
Xingjiu has its own factory,which covers an area of more than 100 acres and 3 production workshops.
3.Strength
simultaneously,our factory also has a research and development and quality testing center,which with strong technical research and development strength.
4.Effective communication
More effective communication so that our products for you to reduce costs, improve efficiency, our company open all channels of communication to listen to your voice.
5. Great after-sales service
Any needs or questions contact me freely.

FAQ

Q: How to start orders or make payments?
A:You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly. for payment , can also be by western union ,money gram ,bitcoin ,that is very easy 
Q: How to confirm the Product Quality before placing orders? 
A: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.
Q: What's your MOQ?
A:For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low price product, our MOQ starts from 100g and 1kg.
Q: Is there a discount? 
A: Yes, for larger quantity, we always support with better price.
Q:How do you treat quality complaint? 
First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q:How to contact us ?
You can choose your interested products and send inquiry to us.
You can dial our telephone directly, you will get our reply.
Send Email to us.
Q:what is the shipping way ?
A: for small order ,we ship by air express ,like Fedex, TNT,DHL,EMS , 
    for large order ,we can send by air to the air port and send by sea to the sea port