Chemical MIME Types Supported

There are many file formats used to store chemical molecular structures.
The plugin supports twenty-seven different chemical MIME types. Internally all chemical structure data are converted into Chemical Markup Language (CML) before display.

In the table below, the current holder of the format is listed. Due to companies being bought by other companies and products being renamed and absorbed by other products the trail of ownership can be difficult to follow. More information about chemical MIME types can be found at The Chemical MIME Home Page.

Chemical MIME Types

MIME type	File extension(s)	Sample	Description	Current Format Holder
chemical/x-alchemy	alc	Sample x-alchemy	Alchemy File Format
chemical/x-msi-car	car, arc	Sample x-msi-car	Accelrys/MSI Biosym/Insight II CAR format CAR: Cartesian Coordinate File ARC: Cartesian Coordinate Archive File
chemical/x-cdx	cdx	Sample x-cdx	ChemDraw binary format
chemical/x-cdxml	cdxml	Sample x-cdxml	ChemDraw XML format
chemical/x-cml	cml	Sample x-cml	Chemical Markup Language	Chemical Markup Language
chemical/x-crk2d	crk2d	Sample x-crk2d	Chemical Resource Kit diagram 2D format
chemical/x-crk3d	crk3d	Sample x-crk3d	Chemical Resource Kit diagram 3D format
chemical/x-cif	cif	Sample x-cif	Crystallographic Information File	International Union of Crystallography
chemical/x-dmol	dmol, outmol	Sample x-dmol	DMol3 coordinates format
chemical/x-fasta	fasta, fa, fsa	Sample x-fasta	NCBI BLAST FASTA sequence format	National Center for Biotechnology Information
chemical/x-gamess-input	inp,gamin	Sample x-gamess-input	GAMESS input format	Iowa State University
chemical/x-gamess-output	gam, gamout	Sample x-gamess-output	GAMESS output format	Iowa State University
chemical/x-gaussian-checkpoint	fchk, fch, fck	Sample x-gaussian-checkpoint	Gaussian formatted checkpoint
chemical/x-gaussian-log	gal, g92, g94, g98, g03	Sample x-gaussian-log	Gaussian output format
chemical/x-genbank	gen, embl	Sample x-genbank	GenBank sequence format	National Center for Biotechnology Information
chemical/x-hin	hin	Sample x-hin	HyperChem HIN format	HyperChem
chemical/x-macromodel-input	mmd, mmod	Sample x-macromodel-input	MacroModel format
chemical/x-mmcif	mcif	Sample x-mmcif	Macromolecular Crystallographic Information File	International Union of Crystallography
chemical/x-mdl-molfile	mol, mdl	Sample x-mdl-molfile	MDL MOL format
chemical/x-mdl-sdfile	sd, sdf	Sample x-mdl-sdfile	MDL SD format
chemical/x-mopac-out	mopout, moo	Sample x-mopac-out	Molecular Orbital PACkage (MOPAC) Output format	MOPAC, Stewart Computational Chemistry
chemical/x-pdb	pdb, ent	Sample x-pdb	Protein Data Bank format
chemical/x-ncbi-asn1-xml	pc	Sample x-ncbi-asn1-xml	NCBI PubChem format	National Center for Biotechnology Information
chemical/x-shelx	res, ins	Sample x-shelx	ShelX format	University of Göttingen
chemical/x-daylight-smiles	smi, smiles	Sample x-daylight-smiles	SMILES format
chemical/x-mol2	mol2, ml2, sy2	Sample x-mol2	Tripos Sybyl Mol2 format	Sybyl
chemical/x-xyz	xyz	Sample x-xyz	XYZ cartesian coordinates format	Tinker, Oxford Molecular UniChem and others