long-chain fatty acid hexadecenoic acid 16:1 acides hexadecenoiques chebi_ontology FA 16:1 C16H30O2 Hexadecensaeure C16:1 254.22458 hexadecenoic acid acide hexadecenoique Hexadecensaeuren PMID:17439666 acido hexadecenoico acidos hexadecenoicos hexadecenoic acid 16:1 254.409 CHEBI:24548 A C16 straight-chain monounsaturated fatty acid having one C=C double bond. 0 monounsaturated fatty acid monounsaturated fatty acid olefinic fatty acid straight-chain fatty acid hexadecenoate