| Supplier | Phone | Fax | Country | Inquiry contact |
|---|---|---|---|---|
| BuGuCh & Partners | Germany | REQUEST | ||
| Purestar Chem Enterprise Co., Ltd. | +86-572-2157374 | +86-572-2146389 | P.R.China | REQUEST |
| Shandong Minglang Chemical Co., Ltd | +86-13220566916 | +86 531 58990167 | P.R.China | REQUEST |
| Sigma-Aldrich International GmbH | +41 81 755 28 28 | +41 81 755 28 15 | Switzerland | REQUEST |