General 
- Item name
- _rcsb_chem_comp_synonyms.name
- Category name
- rcsb_chem_comp_synonyms
- Attribute name
- name
- Required in PDB entries
- yes
- Used in current PDB entries
- No
Item Description 
Data Type 
- Data type code
- text
- Data type detail
- text item types / multi-line text ...
- Primitive data type code
- char
- Regular expression
- [][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*