Di-tert-butyl dicarbonate Application 

(BOC)2O 

Company information

Thanks for your considering of Hebei Guanlang Biotechnology Co., Ltd.(Crovell).Crovell is a fast growing intermediates company,Which located in Shijiazhuang,Hebei Province.

Crovell is specialized in pharmaceutical intermediate,veterinary drug intermediates and dyes intermediates,such as phenylacetamide,dimethylamine hcl, benzyl chloride etc.Crovell also supply various industrial chemicals for customers, such as citric acid,potassium chloride etc.

So far,Crovell has business in more than 35 countries,most big customers come from europe and America, because among the suppliers in china,Crovell can always make the product quality best, some of the products from Crovell can reach the purity of 99.9+, such as 2-phenylacetamide. This is the important reason for customers who choosing Crovell.



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 

Contact us if you want order