Here's some background from Wikipedia:
In computer science, canonicalization (...also sometimes standardization or normalization) is a process for converting data that has more than one possible representation into a "standard", "normal", or canonical form.
Not to be confused with Canonization...
Canonization (or canonisation) is the act by which a Christian church declares a deceased person to be a saint, upon which declaration the person is included in the canon, or list, of recognized saints....and here are some papers from JCICS:
MOLGEN-CID - A Canonizer for Molecules and Graphs Accessible through the Internet
The Signature Molecular Descriptor. 4. Canonizing Molecules Using Extended Valence Sequences
A search of ACS publications shows seven references to canonizer in total, and 32 references to canonization.
Okay, so I'm a native speaker, and yes, I mispell words too. I still think it's funny. :-)