Most secret chems shouldn't be secret.

[Xaltonon]

I've always found it strange how chemistry secrets were kept so safely guarded. Other areas of the game (station network, alloying, engine) are documented on the wiki, but to have a deep understanding of all their interconnected systems requires a lot of experience. Just knowing the steps to do a particular thing won't get you very far especially considering most of the power of these systems revolves around coming up with clever combinations of them on the fly.

Perhaps it's just a byproduct of how comparatively simple chemistry mechanics are, but gating the most powerful chemicals behind a D-notice seems like a poor option. Maybe a chemistry rework (oh god I'm going to get crucified for this) to make it more nuanced could alleviate this?