Ace 
Organic 
Chemistry 
Hundreds of free organic chemistry practice problems.
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500+ Problems

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Practical Questions

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Interactive Functionality

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The Most Interactive and Immersive Chemistry Learning Platform

Carbocat.io is the most modern and interactive chemistry learning platform designed to make complex topics intuitive and engaging. Whether you' mastering reaction mechanisms or refining your understanding of chemical synthesis, carbocat.io is tailored to provide the depth and support you need to excel!

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How it works

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Choose a Topic

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Select a Problem Type

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Get Practicing!

Daniel Chang

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Founder @ CarboCat.ioM.S Organic Chemistry, Caltech (2022)NSF Graduate Research Fellow

A Message from Daniel

Organic chemistry is hard and the only way to get better at it is to keep practicing! As a student, I struggled with the lack of modern practice tools for organic chemistry and was frustrated by flipping through expensive textbooks (and separate answer key books!) to prepare for exams. My team and I built CarboCat.io to provide students with the learning platform we wish we had as students learning organic chemistry. We're so excited to be a part of your journey through this amazing subject. Whether you plan to pursue a career in organic chemistry or just need to take it to fulfill pre-reqs, the problem-solving skills you gain will be valuable for a lifetime.

Meet the Team!

Students Love Us!

"Practicing with the chemical editors was great. Drawing the molecules really helped my understanding of the concepts!"

- Andy Nguyen

"The platform has so many different ways to study. It's a one-stop resource that helps me stay ahead in my studies."

- Eric Ai

"I really enjoyed using carbocat.io, it's definitely my favorite place to study organic chemistry!"

- Natcha Rattana