Molecular Editor Online
Online molecular editor for chemists and students to draw, edit, and convert chemical structures with standard representations easily.

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About This Tool
The Molecular Editor Online provides a domain-focused editor for creating and editing molecular representations. Users input a structure via SMILES, InChI, Molfile, or an interactive canvas and the tool maintains a consistent internal graph model. The editor validates valence rules, supports common functional groups, and ensures generated 2D coordinates are suitable for depiction or export.
Core capabilities include parsing standard formats, rendering a clean 2D depiction, editing atoms and bonds by simple actions, and converting between representations. The tool can compute basic properties (molecular formula, exact mass) and produce canonical SMILES or InChI as outputs. Advanced features include aromaticity recognition, stereochemistry handling, and optional ring perception to help with planning synthetic routes.
Target users are medicinal chemists, academic researchers, and students who need a reliable, fast editor integrated into data workflows or learning environments. The unique value lies in accurate format interconversion, robust validation, and a lightweight, scriptable design that minimizes dependency on heavy desktop tools.
Use cases span rapid sketching for synthesis planning, preparing teaching examples, QA of chemical datasets, and software testing where deterministic structure serialization matters. The tool remains focused on structure editing and representation conversion, avoiding computational chemistry simulations while delivering precise graph-based handling. Data interoperability and export are emphasized: exports include SMILES, InChI, Molfile, and a clean 2D SVG for publication or teaching materials. The editor also supports batch processing of multiple structures via an API.
How to Use
1. Provide inputs: enter SMILES, InChI, Molfile, or draw the structure on the canvas.
2. Configure outputs: choose target representations and enable 2D coordinate generation.
3. Edit structure: modify atoms, bonds, charges, or isotopes as needed.
4. Validate and convert: view canonical SMILES/InChI and ensure valence and aromaticity are consistent.
5. Export results: download Molfile, SMILES, InChI, or a SVG snapshot or copy to clipboard.

FAQs/Additional Resources
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What formats does the editor support?
Is the tool suitable for teaching?
Can I batch process multiple structures?
Does it support stereochemistry and aromaticity?
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