public void ParseNTerminalChemicalFormula()
{
Peptide peptide = new Peptide("[C2H3NO]-TTGSSSSSSSK");
ChemicalFormula formulaA = new ChemicalFormula("C39H69N13O22");
ChemicalFormula formulaB;
peptide.TryGetChemicalFormula(out formulaB);
Assert.AreEqual(formulaA, formulaB);
}