go back on one's word

4-methoxy-5-hydroxycantin-6-one carbohelicene eataines gliding structure hydrazinodeoxy cellulose interspicular region Isherwood Christopher William Bradshaw lipopolymer neocarborane no fix noncontact measurement method purchase acquisition Remada splattering stock washer trade negotiations group transaction beginning point tulear (toliara) ultra-dense unit response function