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Capsiamide is a long chain amide found in essential oil of Capsicum (all hot pepper varieties). Studies showed that Capsiamide decreased spontaneous motor activity and produced a significant prolongation of sleeping time after sodium pentobarbital.

ChEBI: Capsi-amide is a secondary carboxamide and a member of acetamides.

Cap A solution aborts chains bearing unreacted 5μ hydroxyl groups due to failure of reaction with activated phosphoramidite (typically1 to 2% of growing oligonucleotide chains in each synthesis cycle). These unreacted 5μ hydroxyl groups are capped with an acetyl group and thus rendered unreactive for subsequent synthesis steps.