Documentation | ChemCalc

ChemCalc documentationComplete documentation for ChemCalc — molecular formula syntax, mass and isotopic distribution calculations, peptide and nucleotide fragmentation, polymers, the REST API, and how to embed or deep-link the calculators. Please enable JavaScript to use the interactive application.

Molecular formula calculator

The ChemCalc toolbox

Molecular formula finder from monoisotopic mass

List of possible molecular formulas

Compounds for a molecular formula

Peptide and protein fragmentation calculator

Nucleotide and oligonucleotide fragmentation calculator

Polymer mass distribution calculator

Mass spectra database search

In-silico MS/MS fragmentation of a structure

Atomic elements and isotope reference table

Chemical group abbreviations

Publications and literature

ChemCalc Web Services and API

ChemCalc documentation

Mass spectrometry exercises

The ChemCalc newsletter

Cite ChemCalc — Patiny L, Borel A. ChemCalc: a building block for tomorrow's chemical infrastructure. J Chem Inf Model. 2013. DOI: 10.1021/ci300563h