_Systematic_chem_shift_offset.Atom_isotope_number
| Description | Mass number for the atom defined by the '.Atom_type' tag with a systematic chemical shift offset. |
| Details: | |
| Parent saveframe | assigned_chemical_shifts |
| Data type | int |
| DB table | Systematic_chem_shift_offset |
| DB column | Atom_isotope_number |
| DB type | INTEGER |
| NULL allowed | yes |
| ADIT-NMR deposition system prompt | Isotope number for the specified atom. |