ChemCalc

Only a simple molecular weight calculation application by entering the molecular formula with small alphanumeric characters. Super simple, super easy, super lightweight, super fast.
The function is only molecular weight calculation. It's simple and intuitive, so you can calculate the molecular weight with the least amount of work. A must-have item for all chemist!
※Note
The molecular formula must not omit 1.
Example) ethanol → c2h6o1