| Enumerations for _Chem_comp_systematic_name.Naming_system (An open enumeration) | |
|---|---|
| BMRB | enumeration_text |
| CAS name | enumeration_text |
| CAS registry number | enumeration_text |
| IUPAC | enumeration_text |
| One letter code | enumeration_text |
| Three letter code | enumeration_text |