NOTE:  I've heard rumours about problems with wsearch on Windows 7 Home, and on Windows 8. I've heard reports of it working on Windo...

Over a year ago I complained about the lack of a decent molecular weight calculator in linux in general, and in Debian Testing in particula...

Here's the molecular weight part of the isotopic pattern calculator in a previous post. Most people won't need a full molecular ...

UPDATE: I've moved this code to  https://sourceforge.net/projects/pyisocalc/ I'm not answering questions about this code -- it'...

I've downloaded the source code to Matt Monroe's molecular weight calculator in the past, and having replaced wsearch32 (+wine) with...

UPDATE: see here for an isotopic calculator written in python -- it calculates mass as well:  http://verahill.blogspot.com.au/2012/10/isotop...