1H-1,3-Diazepine-4-carboxylicacid, 2-amino-4,5,6,7-tetrahydro-, (S)- (9CI) CAS：28958-90-9

Details:

Our company specializes in processing and selling chemical raw materials, chemical products, pharmaceutical intermediates, veterinary medicine intermediates, dye intermediates, pigments, cosmetics raw materials and chemical reagents,  

Our company has a number of sales team, service and information feedback vertical integration of a sound marketing network, products are sold throughout the country and exported to South Asia, Europe, America, Africa and other more than 20 countries and regions.  

Companies adhering to the "pursuit of quality, innovation and development" business philosophy, to serve as a foundation, for the survival by the quality, seek development by science and technology, adhere to quilty comes first,fair price,good sense of customer service and responsibility. in the future hebei Nengqian import and export trade Co.,Ltd will always hold "integrity, innovation" business philosophy, to achieve honesty management, on the way of specialization, internationalization,  Keep moving!  

Reactive dyes, also known as reactive dyes, are a new class of water-soluble dyes that appeared in the 1950s. Reactive dye molecules contain reactive groups that can react with hydroxyl in cellulose and amino in protein fibers. Covalent bonds are formed with fibers when dyeing and "dye-fiber" compounds are generated. Reactive dyes are mainly used in dyeing and printing of cotton, hemp, viscose, silk, wool and other fibers and their blended fabrics because of their bright color, good uniformity, simple dyeing method, high color fastness and low cost.

FAQ: 
1. Are you a trade company or factory   
We are a  factory with our own trading company.  

2. How do you control the quality   
   Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.   
3.  How long is lead time   
   We deliver goods within 3 days for small order, 7-10 days for bulk order.   
4.  Where is your factory located  How can I visit the factory   
    Our factory located in WEIFANG, China. It is only two hours from QINGDAO.  

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

7. How to start orders or make payments  
  Proforma invoice will be sent first after confirmation of order, enclosed our bank information.Payment by T/T,  

8. How to confirm the Product Quality before placing orders  
  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. 

9. How long is lead time

We deliver goods within 3 days for small order, 7-10 days for bulk order.

10. How do you treat quality complaint

  First of all, our quality control will reduce the quality problem to near zero. If there is a realquality problem caused by us, we will send you free goods for replacement or refund your loss.