| Supplier | Phone | Fax | Country | Inquiry contact |
|---|---|---|---|---|
| Chemvon Biotechnology Co. Ltd. | +86-21-50790412 | +86-21-50790419 | P.R.China | REQUEST |
| Leap Chem Co., Ltd | +852-30606658 | P.R.China | REQUEST | |
| Shanghai Hanhong Scientific Co., Ltd. | +86 21 64762736 | +86 21 54291107 | P.R.China | REQUEST |