We purchase our Alcian Yellow kit for Helicobacter from Newcomer Supply, Kit #9130. Phone number is 800-383-7799. They are a wonderful company to deal with and their Alcian Yellow kit works beautifully. Our pathologists love it!! Lynne Bell, HT (ASCP) Lead Histologist Central Vermont Medical Center 130 Fisher Road Barre, VT 05641 802-371-4923