This Tissue-Tek® optimal cutting temperature (O.C.T.) formula of glycols and water-soluble resins provides a convenient sample matrix for cryostat cutting at temperatures of –10 ° C (14 ° F) and below.
Leaves no residue on the slides during the staining procedure, eliminating undesirable background stains. The O.C.T. The compound is supplied in a 118 ml (4 oz) bottle.