Make your own free website on
Molecular Weight Calculator v2.0
Developed by Junhua Yan 2001.8

Please type molecular formula or query keywords:

[For example, molecular formula: CuSO4.5H2O, PhOH, AcOEt, Gly-Ile-Ala-Thr-Asp, AcO-Gly-Ile-Ala-Thr-Asp-COCH3; query keywords: pt or PT(Periodic Table); aa or AA(amino acid list). See help in detail]
Set decimal places for Elemental Analysis   =
Set decimal places for Exact M.W. and M.S.  =


*: if you want to calculate isotope pattern, please click here.

*. Molecular weight Calculator for Windows 9X, Windows Me, Windows NT, Windows 2000 and Windows XP, click here to download.

If you have any questions or suggestions, please contact me. My email address is
This software is not free software, don't copy it to anyone else without my permission
©2001.7 - 2001.8 All rights reserved