@chemistry/formula

Chemical formula parser — parse, stringify, and calculate molecular weight.

Installation

npm install @chemistry/formula

Usage

import { Formula } from '@chemistry/formula';

const parsed = Formula.parse('C2H5OH');
// { C: 2, H: 6, O: 1 }

const weight = Formula.convertToWeight(parsed);
// 46.069

const str = Formula.stringify(parsed);
// "C2H6O"

Features

• Parse chemical formulas into element counts
• Calculate molecular weight
• Stringify parsed formulas back to string
• Isomorphic — works in Node.js and browsers

License

MIT