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Listing 4825 chemical categories
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|Xanthanolides||CHEMONTID:0000502||Sesquiterpenoids with a structure based on the xanthanolide skeleton consistsing of a cycloheptane ring usually attached to a four-carbon chain (at carbon 1 ) and a methyl group (at carbon 10), and fused to a five-member lactone ring (sharing carbons 7 and 8). The lactone ring can be conjugated with a methyl or methylene group at position 11.|
|Xanthenes||CHEMONTID:0000200||Polycyclic aromatic compounds containing a xanthene moiety, which consists of two benzene rings joined to each other by a pyran ring.|
|Xanthines||CHEMONTID:0000247||Purine derivatives with a ketone group conjugated at carbons 2 and 6 of the purine moiety.|
|Xanthones||CHEMONTID:0000204||Polycyclic aromatic compounds containing a xanthene moiety conjugated to a ketone group at carbon 9. Xanthene is a tricyclic compound made up of two benzene rings linearly fused to each other through a pyran ring.|
|Xanthophylls||CHEMONTID:0001410||Carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Xanthophylls arise by oxygenation of the carotene backbone.|
|Xeniaphyllane and xenicane diterpenoids||CHEMONTID:0002879||Diterpenoids with a structure based either on the xeniaphyllane or the xenicane skeleton.|
|Xylenes||CHEMONTID:0004208||Aromatic compounds that contain a xylene moiety, which is a monocyclic benzene carrying exactly two methyl groups.|
|Xylenols||CHEMONTID:0004212||Aromatic compounds that contain a xylene moiety, which is a monocyclic benzene carrying exactly two methyl groups, and at least one hydroxyl group.|