5-17-04-00502 (Beilstein Handbook Reference) 9-Hydroxyxanthene 9-Xanthydrol 90-46-0 9H-Xanthen-9-ol AI3-01536 BRN 0010395 CCRIS 1640 EINECS 201-996-1 NSC 4038 Xanthanol Xanthen-9-ol Xanthene, hydroxy- Xanthydrol