_Chem_comp.Atom_nomenclature_source
| Description | The code assigned by PubChem to the chemical component. |
| Details: | |
| Parent saveframe | chem_comp |
| Data type | line |
| Common values | ALATIS BMRB |
| DB table | Chem_comp |
| DB column | Atom_nomenclature_source |
| DB type | VARCHAR(127) |
| NULL allowed | yes |