Groups (bio)chemistry recipes together. This grouping is based primarily on how chemical plants share recipes with other machines.
I don't recommend using this unless you start having a scrollbar in your intermediates tab.

It also makes sure that said chemical plants will most likely open on the tab that has most of their recipes.
It does move the biochamber from the machines tab, but that is considered a feature for now.

Successor to the biopricessing group.
https://mods.factorio.com/mod/bioprocessing-tab

Companions for more sorting:
https://mods.factorio.com/mod/science-tab
https://mods.factorio.com/mod/barreling-group2
https://mods.factorio.com/mod/SchallTransportGroup
https://mods.factorio.com/mod/SchallCircuitGroup
https://mods.factorio.com/mod/assembler-group