552 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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* | DD | ORGANIC COMPOUNDS (Class 532, subclass 1) {11} |
502 | DF | .~ Cyclopentanohydrophenanthrene ring system containing {21} |
623 | | .~.~ Two oxygens bonded directly to the cyclopentanohydrophenanthrene ring system {5} |
624 | DF | .~.~.~> Oxygen bonded directly at the 16-position |
625 | DF | .~.~.~> The A ring is a benzene ring (e.g., estrones, estradiols, etc.) {5} |
632 | DF | .~.~.~> 19-position substituted (e.g., 19-methylene-androstanes, 10-cyanoestranes, etc.) |
633 | DF | .~.~.~> Carbon bonded directly at the 10- and 13-positions (e.g., androstenes, etc.) {5} |
642 | DF | .~.~.~> Carbon bonded directly at the 13-position (e.g., 19-norandrostenes, estradienes, etc.) {4} |