How to order

Thank you for choosing Huiheng(Nanjing).

Huiheng(Nanjing) offers and sells research chemicals for laboratory use to legal entities only.

We offered a variety of ways for you to get in touch with us.

You may place orders via phone,QQ, WeChat, email.

We require the following information to process your order:

1. Product name / CAS No., structure and Quantity.

2. Your Company info and e-mail address (we will send order confirmation and updates to you.)

3. Your name and telephone number

4. Shipping address and billing address

Our Sales Department is willing to help you with any information you may require,

Or send Email to : [email protected] [email protected]

Custom Synthesis

For any item you are interested in purchasing that is not listed in our catalog, please send detailed information to our sales department to obtain a quote.Of course, it would be better if you could tell us your target purchase price.

Helpful information could include CAS#, Structure, Chemical Name, quantity, purity, how soon you need the material, as well as any additional specifications you require.

Conditions of sale & quotations

In our catalog there are given no prices. The current quotations can be obtained via our contact page. Of course, we also welcome you to tell us your target purchase price.Offers will be returned within 24-48 hours to the customer. The validity of our offers is net 10 days.


For most of the chemicals, we can provide 98%+ content, while a small part is 97%+ content. If the customer has different requirements for the content, they can be stated in the agreement. Its structure and purity were confirmed by NMR, HPLC or LC/GC-MS.


The payment terms are 30-50% deposit within 24 hours after the signing of the agreement. After we produce the compounds and issue NMR, HPLC or LC/GC-MS, the customer needs to pay off the remaining contract payment, and we will arrange shipment upon receipt of the remaining payment.

Transportation Temperature

Most of our products are shipped in ambient temperatures. Short term exposure to ambient temperatures does not affect product quality.

For certain products sensitive to short-term exposure and requiring conditions other than ambient temperatures, we ship these reagents with refrigerants to prevent degradation.