Recently, it has been shown that a novel class of machine-learning-based interatomic potentials can be used for random structure search and readily predicts several hitherto unknown carbon allotropes , allowing them to be identified with topology labels such as dia (diamond), lon (lonsdaleite), and for polytypes: cfc for 4H diamond, cfe for rhombohedral 9R. In view of the enormous number of carbon allotropes, experimentally found and theoretically predicted, a database "SACADA" has been created to store them with topologies and identifiers; 9R allotrope (hRC 18 in Pearson notation) studied here and classified with cfe topology and database code: 447 .