Reaction Mechanism MCAT Tutor
Organic chemistry reactions — predict the product, then order the curved arrows
Predict the major product, then order the curved arrows. Organic chemistry practice for reactions, mechanisms, and the days left before your final. Draw a reactant or start from a template, add reagents, and see why that product wins — regiochemistry, stereochemistry, and the mechanism your professor grades.
Start with these guides
The MCAT pillar page, SN1/SN2, stereochemistry (R/S, meso), and carboxylic acid derivatives match high-intent search queries and typical U.S. syllabi — without a separate blog.
- Pillar pageMCAT Organic Chemistry — What to Study, Mechanisms & PracticePre-med study plan, what the MCAT tests, and links to every mechanism hub.Read guide →
- Orgo 1 · high search volumeSN1 vs SN2Compare SN1 and SN2 substitution: substrate, nucleophile, solvent, stereochemistry (inversion vs racemization), and the trap answers on orgo exams and the MCAT.Read guide →
- MCAT + finals · R/S & isomersStereochemistryStereochemistry for orgo finals and MCAT prep: Cahn–Ingold–Prelog R/S rules, enantiomers vs diastereomers, meso compounds, optical activity, and Fischer projection traps.Read guide →
- Orgo 2 · syllabus stapleCarboxylic acid derivatives (esters & amides)Orgo 2 guide to carboxylic acid derivatives: nucleophilic acyl substitution, reactivity acid chloride > anhydride > ester > amide, Fischer esterification, amide formation, and trap answers.Read guide →
Why pre-meds use OrgoMech
OrgoMech shows the major product of your molecule, then the curved arrows in order. Draw a reactant or start from a template, add the reagents, and see why that product wins. Built for midterms, finals, and the organic chemistry section of the MCAT.
Predict the product
Your structure, regiochemistry, and stereochemistry — see the major product before you memorize another flashcard.
Practice the mechanism
Put electron-pushing steps in the right order. Curved arrows that match what a graded mechanism asks you to show.
Daily exam drill
Missed reactions come back until both the product and the mechanism are right — spaced practice for your final.
Reaction library
Substitution, elimination, addition, carbonyls, aromatics, and redox — reagents, conditions, products, and trap answers.
Countdown on Home
See the days left before your exam. The drill sits on Home so practice stays on your schedule.
Built for the exam
Midterm, final, or MCAT orgo — each reaction explains why that product wins, including answers students mix up.
Built for the exam
Use OrgoMech for a midterm, the final, or the organic chemistry section of the MCAT. Each reaction explains the product that wins — including trap answers students mix up on homework and standardized tests.
Master the mechanisms
Watch the nucleophile attack, the leaving group leave, and the pi bond form. That is the arrow-pushing a graded mechanism asks you to show — not just names on a cheat sheet.
A reaction library that makes sense
Browse core reactions by type. Each includes reagents, conditions, products, mechanism, and the point that gets tested. Read free mechanism hubs, the MCAT orgo guide, or study plans by goal.
OrgoMech Pro
Full access requires an auto-renewable subscription. Prices are shown in the App Store and in-app paywall.
- OrgoMech Pro Weekly — 1 week
- OrgoMech Pro Yearly — 1 year
Payment is charged to your Apple ID at purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel in Settings → Apple ID → Subscriptions. Step-by-step cancel guide
Frequently asked questions
- What is OrgoMech?
- OrgoMech is an iOS app for organic chemistry students and pre-meds. You draw or pick a reactant, add reagents, predict the major product, then practice ordering the curved-arrow mechanism steps — the same skills tested on exams and the MCAT.
- Is OrgoMech good for MCAT organic chemistry?
- Yes. OrgoMech focuses on reaction outcomes, stereochemistry, and mechanism arrow-pushing — core skills for the organic chemistry section of the MCAT and undergraduate orgo courses.
- How is OrgoMech different from memorizing reactions?
- Instead of isolated facts, you see why a product wins (regiochemistry and stereochemistry) and practice electron-pushing in sequence. The reaction library groups mechanisms by type with the trap answers students confuse on tests.
- Does OrgoMech include a reaction mechanism practice mode?
- Yes. After predicting the product, you order the mechanism steps — nucleophile attack, leaving group departure, and pi bond formation — matching graded mechanism questions.
- Where can I download OrgoMech?
- OrgoMech is available on the Apple App Store for iPhone and iPad in the United States and other regions where the app is listed. Use the Download on the App Store link on this site.
Stop memorizing. Start understanding.
Download OrgoMech and take the guesswork out of organic chemistry reactions and mechanisms.