Tryptone Yeast Extract Cystine w/Sucrose and w/o Bacitracin Agar (TYCSB) Cat No.Pack SizeTest/Kit BS.1/ TY01.100.0100 1 x 100 gm BS.1/ TY01. 250.0250 1 x 250 gm BS.1/ TY01. 500.0500 1 x 500 gm