Glyco Calc Mass Spec

The Mass Spec Helper is a calculator that helps assign glycans to MS/MS spectra.

Now made free!

Doing Glycan or Glycopeptide MS/MS fragmentation? Never reach for that calculator again!

It's here - the perfect aide for glycan/glycopeptide mass spectrometry! This is a tool that automatically calculates glycan losses for you. Give the free "LITE" version a try, and then buy the paid version if you like it!

How to use it:

1) Generate your MS/MS spectrum

2) Choose permethylated or native glycans with the "Perm" toggle button.

3) Type in the precursor mass, click "Calc" or hit enter.

4) The possible peaks are generated for you!

5) Tap the list of subsequent peaks to repeat the calculation with that new peak value.

6) Keep choosing peaks - the history saves the sequence for you (paid version)!

7) Determine the probable glycan structures from the history.

Paid Features:

*LacNAc, NeuAcLacNac, FucLacNAc

*m/z and graphical History lets you track the glycan sequence for easy sequencing

*Receive upcoming updates (inbuilt calculator, more combinations of saccharides, plant glycans)