Computing: Free Pascal Programming

Molecular weight calculator.

Download MolWeight desktop application (Windows 64bit) Download MolWeight source code (Lazarus/Free Pascal)

Description: Calculation of the molecular weight of standard molecules (entered as chemical formula), as well as of DNA and RNA oligonucleotides and proteins (entered as IUP/IUPAC codes or read from file; both raw data and FASTA format are supported).
Enter your molecule data in the appropriate input field. For oligonucleotides, choose if the molecule is DNA or RNA, single- or double-stranded; for proteins, choose if 1-letter or 3-letters code is used. Push the Calculate button to do the calculation. With this done, you can display the chemical composition of the molecule (atoms, bases resp. amino acids counts and percentages) by using the corr. item in the Extras menu.
Detailed program help, including explanations how the molecular weight of the oligonucleotides is actually calculated, is included.

Free Pascal features: Reading data from a text file into a Memo; working with Memo data. Using string grids to display data as tables.


Calculation of the molecular weight of a protein
Determination of the chemical composition of a protein