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A chemical file format is a type of data file which is used specifically for depicting molecular data. One of the most widely used is the chemical table file format, which is similar to Structure Data Format files. They are text files that represent multiple chemical structure records and associated data fields.
Chemical table file (CT file) is a family of text-based chemical file formats that describe molecules and chemical reactions. One format, for example, lists each atom in a molecule, the x-y-z coordinates of that atom, and the bonds among the atoms.
Chemical file format; C. CCP4 (file format) CDX Format; CDXML; Chemical Markup Language; Chemical table file; Crystallographic Information File; H. Hierarchical ...
Its fixed-column width format is limited to 80 or 140 [4] columns, which was based on the width of the computer punch cards that were previously used to exchange the coordinates. [5] Through the years the file format has undergone many changes and revisions. The final update to the PDB file format was in November 2012 with version 3.30. [6]
Chemical literature databases correlate structures or other chemical information to relevant references such as academic papers or patents. This type of database includes STN, Scifinder, and Reaxys. Links to literature are also included in many databases that focus on chemical characterization.
The Macromolecular Crystallographic Information File (mmCIF) also known as PDBx/mmCIF is a standard text file format for representing macromolecular structure data, developed by the International Union of Crystallography (IUCr) and the Protein Data Bank [1] It is an extension of the Crystallographic Information File (CIF), specifically for macromolecular data, such as proteins and nucleic ...
Chemical Markup Language (ChemML or CML) is an approach to managing molecular information using tools such as XML and Java. [1] It was the first domain specific implementation based strictly on XML , first based on a DTD [ 2 ] and later on an XML Schema , [ 3 ] the most robust and widely used system for precise information management in many areas.
The native file formats for ChemDraw are the binary CDX and the preferred XML-based CDXML formats. ChemDraw can also import from, and export to, MOL , SDF , and SKC chemical file formats. Plugins