DebiChem Chemical Formula/Structure Editors packages

BKchem is a free chemical drawing program, which is written in Python.

Some of the features, you can expect:

• Drawing (bond-by-bond drawing; templates for common rings; expanding of common-groups; draws radicals, charges, arrows; color support ...)
• Editing (unlimited undo and redo capabilities; aligning; scaling; rotation (2D, 3D) ...)
• Export/Import (fully supported SVG-, OpenOffice.org-Draw-, EPS-export; basic support for CML1 and CML2 import and export)

Chemtool is a GTK+ based 2D chemical structure editor for X11. It supports many bond styles, most forms of text needed for chemical typesetting and splines/arcs/curved arrows.

Drawings can be exported to MOL and PDB format, SVG or XFig format for further annotation, as a PiCTeX drawing, as a bitmap or as Postscript files (several of these through XFig's companion program fig2dev).

The package also contains a helper program, cht, to calculate sum formula and (exact) molecular weight from a chemtool drawing file. Cht can either be called directly by Chemtool or on the console.

EasyChem は、高品質の分子図および PDF、PS、LaTeX および fig にエクスポート 可能な二次元化学公式の作成を補助するプログラムです。

EasyChem は、元々は化学書籍中の図式を作成するために開発され、現在商用および 非商用の化学関連書籍の出版に頻繁に利用されています。

GChemPaint は複数の文書インターフェイスによる二次元化学構造用エディタ です。描画した分子は NIST ウェブブックおよび PubChem で検索できます。

OSRA is a utility designed to convert graphical representations of chemical structures, as they appear in journal articles, patent documents, textbooks, trade magazines etc., into SMILES (Simplified Molecular Input Line Entry Specification) - a computer recognizable molecular structure format. OSRA can read a document in any of the over 90 graphical formats parseable by ImageMagick - including GIF, JPEG, PNG, TIFF, PDF, PS etc., and generate the SMILES representation of the molecular structure images encountered within that document.

Xdrawchem is a 2D editor for chemical structures and reactions. It mirrors the abilities of the commercial ChemDraw suite and has file compatibility with it as well as other chemical formats through OpenBabel.

This packaged version comes from a fork available at https://gitlab.com/yamanq/xdrawchem, as the previous version was no longer actively maintained. More information about it in the copyright file.