Dear Sirs, We manufacture Alcian Yellow and Alcian Blue. Kind Regards. - Minggeng Wang, Ph.D / President SUZHOU SINOERA CHEM CO., LTD. 125 Binhe Road Suzhou New & Hi-Tech District 215011 China Fax: +86 512 68258994 Tel: +86 512 68246939 http://www.sinoeratech.com