is a freeware two-dimensional Molecule drawing program for Windows 95/98/NT/2000/XP. It is Similar in functionality to other molecule drawing programs such as ChemDraw (TM, CambridgeSoft). It can read and write MDL Molfiles to allow sharing Between XDrawChem and other chemistry applications, as well as read ChemDraw binary and text files.
100% compatible UNIX/Linux/FreeBSD version
Fixed length, fixed angle drawing.
Automatic alignment of figures. Detects structures, text, and arrows and places them automatically.
Can read and write MDL Molfiles, and can export drawings as pictures.
Can automatically draw rings and other structures - has all standard amino acids and nucleic acids in built-in library.
Can draw symbols such as partial charge, radicals, etc.
Online help, including tool tips.
Support for CML (Chemical Markup Language) as defined in J. Chem. Inf. Comput. Sci.39(1999), 928-942
Support for reading ChemDraw (TM, CambridgeSoft) XML (text) and binary files.
Can export Encapsulated PostScript (EPS) files which can be imported into other applications.
13C NMR Prediction, based on Bremser W, Mag. Res. Chem.23(4):271-275
1H NMR prediction, based on additive rules and functional group lookup methods, described in Pretsch, Clerc, Seibl, Simon, "Tables of Spectral Data for Structure Determination of Organic Compounds", 2ed., 1989, Springer-Verlag
Simple IR prediction.
Reaction analysis: gas-phase enthalpy change estimate, 1H NMR and 13C NMR comparison.
is distributed under the terms of the GNU General Public License. In a Nutshell, it's free but with no warranty. Read the LICENSE file for important conditions.