According tohttps://wiki.hydrogenaud.io/index.php?title=Tag_Mapping#Identifiers
ID3v2 has special TXXX (user defined) fields, which allow you to have fields of any name. In Mp3tag, if a name doesn't map to one of its recognized four-letter frame names, then Mp3tag will create a TXXX frame with that description. So you can write things like 'Catalog #' or "Catalog Number'. This is commonly how ReplayGain fields are written to ID3v2 tags - TXXX frames with descriptions of REPLAYGAIN_TRACK_GAIN, REPLAYGAIN_ALBUM_GAIN, etc..
You can read the ID3v2.3 and 2.4 specs here , but th…
As @jewahe already told you, there is no standard field for CATALOG in ID3v2.3 or v2.4