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.
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Question: Characterization of binding sites of a new neurotensin receptor antagonist, [3H]SR 142948A, in the rat brain.

Answer: neurotensin


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

Answer: retinol


Question: 2-Hydroxychalcone and xanthohumol inhibit invasion of triple negative breast cancer cells.

Answer:
xanthohumol