Data Item _chem_comp.pdbx_casnum
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General 
- Item name
- _chem_comp.pdbx_casnum
- Category name
- chem_comp
- Attribute name
- pdbx_casnum
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
Chemical Abstract Service identifier.
Data Type 
- Data type code
- line
- Data type detail
- char item types / multi-word items ...
- Primitive data type code
- char
- Regular expression
- [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
- Internal data item
- Yes
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _chem_comp.rcsb_casnum | cif_rcsb.dic | 1.1 |