|  | Supplier | 
| www.daicel.com | 
| www.axoindustry.com | 
| www.sdlookchem.com | 
ShanDong look chemical Co.,Ltd.   China
| www.alphaaromatics.com | 
| www.chemodex.com | 
| www.mbfarma.com | 
Hangzhou MicroBlue Pharmaceutical Co.,Ltd   China

| www.aksharchemicals.in | 
| chemceed.com | 
| www.itwreagents.com/germany/de/deutschland-home | 
| www.dksh.com | 
| www.explore.azelis.com | 
| www.megachem.com.sg | 
| www.amikitalia.com | 
| www.biovectra.com | 
| www.phpchem.cz | 
| www.polypeptide.com | 
Polypeptide Laboratories A/S   Denmark
| www.flarer.ch | 
| www.amberchem.cn | 
Suzhou Amber Chemical Co., Ltd.   China
| www.alembiclimited.com | 
Alembic Chemical Works Co. Ldt.   India