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5-PAHSA (cas:1481636-41-2) is a FAHFA obtained by formal condensation of the carboxy group of palmitic acid with the hydroxy group of 5-hydroxystearic acid.

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5-Methylurapidil is an alpha1A-adrenoceptor antagonist. It has also been used for competitive binding in radioligand binding assays.

5-Methyltryptamine hydrochloride acts as a 5-HT receptor agonist.

5-Methylcytosine is a methylated cytosine. It acts as a ligand of the hDNMT1.