_Entity_purity.ID
| Description | An integer value that uniquely identifies the purity value in the table of reported purity values in the entry. |
| Details: | |
| part of local key (identifies unique row in a table in the entry) | |
| Parent saveframe | molecule_purity |
| Data type | int |
| DB table | Entity_purity |
| DB column | ID |
| DB type | INTEGER |
| NULL allowed | no (mandatory) |
| part of primary key | |
| row index for the table | |