In this task, you are given a sentence. You are expected to recognize the name of any form of chemical substances. Although there might be several correct answers, you need to write one of them.

Q: RDH12, a retinol dehydrogenase causing Leber's congenital amaurosis, is also involved in steroid metabolism.

A: retinol
****
Q: A low toxicity maintenance regime, using eicosapentaenoic acid and readily available drugs, for mantle cell lymphoma and other malignancies with excess cyclin D1 levels.

A: eicosapentaenoic acid
****
Q: Discovery of liver-targeted inhibitors of stearoyl-CoA desaturase (SCD1).

A:
stearoyl-CoA
****