If you know the identifier then Scholia can make a lookup based on the identifier:
- cas/50-00-0
- Lookup CAS 50-00-0. This will identify formaldehyde
and redirect to its Scholia page.
- inchikey/QTBSBXVTEAMEQO-UHFFFAOYSA-N
- Redirect also works for InChIKeys, here for acetic acid.