Convert a MOL file to Marvin MRV
Free, no sign-up. It runs in your browser on Athanor’s own engine, and your structures never leave your device.
MOL file in
or paste it
Marvin MRV out
How to do it
Choose a file, or paste it.
Athanor’s own engine reads it in your browser and writes the new format.
Download the result. It is read back and checked first.
How it works
Turn a MOL file into a Marvin .mrv document that opens in Marvin JS and MarvinSketch. Athanor reads and writes Marvin’s MRV format with its own engine, the one in the Athanor app, so nothing is uploaded and you need no Marvin license. After converting, it reads the result back and compares the structure by its InChIKey.
Measured on November 12, 2026 over all 1,128 structures in Athanor’s compound library, each written as MRV and read back: all 1,128 came back as the same structure. Marvin JS can no longer be bought after December 31, 2026; see the Marvin JS alternative for moving an embedded editor.
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