XmlmmCIF equivalent: database Data items in the DATABASE category have been superseded by data items in the DATABASE_2 category. They are included here only for compliance with older files. XmlmmCIF equivalent: database/code_CAS The code assigned by Chemical Abstracts. XmlmmCIF equivalent: database/code_CSD The code assigned by Cambridge Structural Database (organic and metal-organic compounds). XmlmmCIF equivalent: database/code_ICSD The code assigned by the Inorganic Crystal Structure Data Base. XmlmmCIF equivalent: database/code_MDF The code assigned by the Metals Data File (metal structures). XmlmmCIF equivalent: database/code_NBS The code assigned by the NBS (NIST) Crystal Data Database (lattice parameters). XmlmmCIF equivalent: database/code_PDF The code assigned by the Powder Diffraction File (JCPDS/ICDD). XmlmmCIF equivalent: database/journal_ASTM The ASTM CODEN designator for a journal as given in the Chemical Source List maintained by the Chemical Astracts Service. XmlmmCIF equivalent: database/journal_CSD The journal code used in the Cambridge Structural Database. XmlmmCIF equivalent: database/entry_id This data item is a pointer to _entry.id in the ENTRY category.