Wikipedia / Optimal cutting temperature compound
Wikipedia / Optimal cutting temperature compound
Optimal cutting temperature (OCT) compound is used to embed tissue samples prior to frozen sectioning on a microtome-cryostat. This process is undertaken so as to mount slices (sections) of a sample onto slides for analysis.
Components
From MSDS:
5–15% polyvinyl alcohol
1–10% polyethylene glycol
75–95% non-reactive ingredients