Observed arrival · 2026-09-25
Arrow Lab makes organic chemistry a move-by-move exercise
An interactive organic chemistry study tool where learners draw electron-pushing arrows and get feedback on each move.
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$Paid
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✦Pretty
●Pro
◎Niche
◉Human
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ƒJS
- For
- Organic chemistry students and instructors
- Worth noticing
- The public SN2 exercise explains the lone-pair attack as the C–Br bond breaks, rather than only marking an answer right or wrong.
Field notes
The public entry point is an SN2 exercise: learners draw two electron moves, and the page displays the expected lone-pair attack and C–Br bond break. The fuller library is described as core-topic lessons, worked solutions, varied practice, mixed-topic quizzes, and account-saved progress. Signup is invite-only; instructors can buy a class pass, invite students by email, and use a reaction editor to publish custom mechanisms for funded students.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
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