Since you updated to 1.9.4, and there is no NEI support for that version, could you add JEI support to the mod instead? I think it would be better.

Yes, I was thinking of doing that, but forgot about it until now.

Just a question, is there any kind of up-to-date list of alchematising recipes?

The only up-to-date list right now is the source code itself. If you care to try and read it, you should look in src/com/mraof/minestuck/util/AlchemyRecipeHandler.java.

Oh thank you so much! I was looking in the source code but I didnt really know where to look.