Chemical Draw Exchange Format

Readable

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The Chemical Draw Exchange Format is the native format of ChemDraw software, a molecule editor developed by CambridgeSoft for use on Macintosh and Windows platforms. The format is used to store accurate chemical drawings and molecular data in a tagged binary format.

Identify it

Extensions	`.cdx`
MIME types	`chemical/x-cdx`
Signatures	`566a4344303130300403020100000000000000000000` at byte 0 (Chemical Draw Exchange format)
PRONOM	`fmt/378`
Wikidata	`Q5010021`
Library of Congress	`fdd000582`

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Open it

OpenBabelOpen sourcereads · GNU General Public License, version 2.0 or later
ACD/ChemSketch 11.01reads and writes
ChemDrawreads
ChemDraw 4.0reads
ChemWindowreads
Molconvertreads

Convert it

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Sources

PRONOM fmt/378
Wikidata Q5010021

From PRONOM, Wikidata. Updated 2026-10-20.

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