🎓 Two-course college-level sequence · AP-equivalent rigor

Organic Chemistry

Pick the semester you're studying. Both courses include interactive lessons, exit quizzes, flashcards, a diagnostic test, and an AP-equivalent 1–5 score predictor so you can benchmark progress the same way AP students do.

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First semester

Organic Chemistry 1

Structure, bonding, stereochemistry, SN1/SN2/E1/E2, alkene/alkyne/radical reactions, alcohols, and 1D spectroscopy (IR, MS, NMR).

• 5 units · 13 topics
• ~90 lesson parts
• Mechanism walkthroughs
• 1–5 score predictor

Start OChem 1 →

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Second semester

Organic Chemistry 2

Aromatics & EAS/NAS, pericyclic reactions, full carbonyl & acyl substitution, enolate condensations (aldol/Claisen/Michael/Robinson), biomolecules, advanced 2D NMR, and full retrosynthetic planning.

• 6 units · 17 topics
• Pericyclic & retrosynthesis
• 2D NMR (COSY/HSQC/HMBC)
• 1–5 score predictor

Start OChem 2 →

Not sure which one to pick?

• Just starting organic? → Organic Chemistry 1
• Already comfortable with SN/E and basic spectroscopy? → Organic Chemistry 2
• Want a baseline first? → Take the diagnostic — it covers both.

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