Norisoprenoids |
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| Damascones; Ionones; Irones; Megastigmanes; Nor-Isoprenoids; Theaspiranes; Vitispiranes; Nor Isoprenoids | |
| Thirteen-carbon butene cyclohexene degradation products formed by the cleavage of CAROTENOIDS. They contribute to the flavor of some FRUIT. | |