TaoSign Corporation specializes in research and and manufacture of 3-Hexyne-2,5-diol,cas: 3031-66-1. 3-hexyne2,5 diol. Contact person: Edvin wang TaoSign Corporation Headoffice: RM1402, Doublestar Seacoase 7#, No.5 Guizhou Road, Qingdao, China 266001 Tel: 0086 532 85760913; Fax:0086 532 85761013 Email: edvin@chemaster.cn; chemaster01@yahoo.com.cn