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CollegeYour own world‑class
Your own world‑class
organic chemistry tutor
Pioneered by Stanford AI researchers and learning scientists, Aristotle is the world's first voice-based AI organic chemistry tutor.
From pushing arrows to planning a synthesis, Aristotle has improved thousands of grades over 22% within a week.
Trusted by families at
The curriculum
Over 200 organic chemistry skills, personalized to you
Aristotle is designed to always know what to teach at exactly the right time.
Sample curriculum
+ 7 more science subjects available
Not startedIn progressMastered* Click a topic to see the skills inside
* Click a topic to see the skills inside
Structure, Bonding, and Representations
Acids, Bases, and Electronic Effects
Isomerism, Conformation, and Stereochemistry
Mechanisms, Energy, and Reaction Strategy
Alkanes, Cycloalkanes, and Radical Chemistry
Alkenes and Alkynes
Substitution and Elimination
Spectroscopy and Structure Determination
Conjugation and Aromaticity
Aromatic Reactions
Alcohols, Phenols, Ethers, Epoxides, and Sulfur Compounds
Aldehydes and Ketones: Carbonyl Addition
Carboxylic Acids and Derivatives: Acyl Substitution
Enols, Enolates, and Condensations
Amines and Heterocycles
Multistep Synthesis and Retrosynthesis
Bioorganic Molecules and Materials
Organic Chemistry tutoring curriculum205 skills across 17 units
Structure, Bonding, and Representations
Drawing, bonding, charge, resonance, orbital, and functional-group language for organic molecules. Topics: Organic Representations, Bonding and Hybridization, Formal Charge and Resonance, Functional Groups.
Acids, Bases, and Electronic Effects
Reusable pKa, nucleophile/electrophile, induction, resonance, and noncovalent reasoning. Topics: Acid-Base Reasoning, Electronic Effects, Nucleophiles and Electrophiles, Intermolecular Forces.
Isomerism, Conformation, and Stereochemistry
Constitutional isomers, conformations, cyclohexanes, chirality, stereochemical labels, and stereoisomer relationships. Topics: Constitutional Isomerism and Nomenclature, Conformational Analysis, Configuration Labels, Stereoisomer Relationships.
Mechanisms, Energy, and Reaction Strategy
Curved-arrow electron flow, intermediates, energy profiles, rate laws, selectivity, and reaction-category reasoning. Topics: Curved-Arrow Mechanisms, Reaction Energy and Rates, Selectivity and Rearrangements, Reaction Strategy.
Alkanes, Cycloalkanes, and Radical Chemistry
Saturated hydrocarbons, strain, combustion, radical halogenation, and radical mechanisms. Topics: Alkanes and Cycloalkanes, Radical Reactions.
Alkenes and Alkynes
Pi-bond structure, addition selectivity, synthesis, reduction, oxidation, and cleavage. Topics: Alkene Addition Reactions, Alkyne Reactions, Pi-Bond Synthesis and Strategy.
Substitution and Elimination
Alkyl halide reactions, SN1/SN2/E1/E2 mechanisms, substrate/reagent/solvent effects, and competition. Topics: SN2 Reactions, SN1 Reactions, E1 and E2 Reactions, Substitution-Elimination Competition.
Spectroscopy and Structure Determination
Mass spectrometry, IR, NMR, UV-visible patterns, and combined structure-elucidation problems. Topics: Mass Spectrometry, Infrared Spectroscopy, NMR Spectroscopy, Combined Structure Determination.
Conjugation and Aromaticity
Conjugated systems, diene reactivity, aromatic criteria, antiaromaticity, and heteroaromatic electron counting. Topics: Conjugated Systems, Aromaticity.
Aromatic Reactions
Electrophilic and nucleophilic aromatic substitution, directing effects, benzylic chemistry, and aromatic synthesis. Topics: Electrophilic Aromatic Substitution, Aromatic Synthesis.
Alcohols, Phenols, Ethers, Epoxides, and Sulfur Compounds
Oxygen and sulfur functional groups, oxidation/reduction, substitution, protection, and epoxide chemistry. Topics: Alcohols and Phenols, Oxidation and Reduction, Ethers and Epoxides, Sulfur Compounds and Protecting Groups.
Aldehydes and Ketones: Carbonyl Addition
Carbonyl polarity, aldehyde and ketone nomenclature, nucleophilic addition, hydride, organometallic, and derivative-forming reactions. Topics: Carbonyl Structure and Reactivity, Aldehyde and Ketone Additions.
Carboxylic Acids and Derivatives: Acyl Substitution
Carboxylic acids, nitriles, acid derivatives, reactivity order, interconversion, reductions, and addition-elimination mechanisms. Topics: Carboxylic Acids and Nitriles, Nucleophilic Acyl Substitution.
Enols, Enolates, and Condensations
Alpha acidity, enolate formation, alpha substitution, aldol and Claisen chemistry, conjugate addition, and carbon-carbon bond synthesis. Topics: Enols and Enolates, Aldol Reactions, Claisen and Related Condensations, Conjugate Addition.
Amines and Heterocycles
Nitrogen functional groups, amine basicity, amine synthesis and reactions, diazonium chemistry, and heterocycle patterns. Topics: Amine Properties and Synthesis, Amine Reactions, Heterocycles.
Multistep Synthesis and Retrosynthesis
Multistep synthesis planning, reagent choice, functional-group interconversion, protecting groups, route comparison, and strategy. Topics: Multistep Synthesis and Retrosynthesis.
Bioorganic Molecules and Materials
Bioorganic molecules and materials: the structures and characteristic reactions of carbohydrates, amino acids, peptides and proteins, lipids, and nucleic acids; the orbital-symmetry treatment of pericyclic reactions (cycloadditions, electrocyclizations, and sigmatropic rearrangements) that builds on the conjugation and Diels-Alder work; and the formation, classification, and structure-property relationships of synthetic polymers. Topics: Biomolecules, Pericyclic Reactions, Polymers and Materials.
From our families
What parents are telling us
“My son told me yesterday that we should cancel his human tutor, Aristotle is doing a better job. The human tutor was $250/hour.”
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Why students switch
Everything an hourly tutor can't be
On demand, 24/7
No scheduling, no weekly slot. Help is there during the problem set at 11pm and at 1am the night before the exam.
A fraction of the cost
Unlimited sessions on a flat plan instead of paying a human tutor by the hour.
Truly personalized
Aristotle tracks every skill you've mastered and teaches at your exact frontier: never too easy, never too far ahead.
Driven by science
How Aristotle works
Dialogue over lectures
Your child speaks — the tutor listens and responds.
Interactive engagement is the highest level of learning · ICAP Framework
Misconceptions over mistakes
Finds the conceptual gap underneath the wrong answer.
Models the reasoning pattern, not just the error · MISTAKE
Expert-level error handling
Follows the same 3-step process expert tutors use.
Novice tutors skip to correction — experts don't · Bridge
Verified every turn
Every response is checked before it reaches your child.
Turn-by-turn verification improves outcomes · TRAVER
Gets them to think
Asks your child to explain, then guides them until they get there themselves.
Socratic dialogue outperforms GPT-4 by 12% · SocraticLM
Fits your organic chemistry course
Built around the course you're actually taking
The full two-semester sequence
The map covers a standard sophomore orgo sequence, from structure and bonding through mechanisms, spectroscopy, and multistep synthesis, so it fits Orgo I and Orgo II.
Your professor's course
Share the syllabus, textbook, or this week's problem set and sessions follow your class, in the order your professor teaches it.
Your own goals
Rescuing a grade before the final, getting ahead over the summer, or rebuilding fundamentals? Aristotle builds the path backwards from your goal.
FAQ
Common questions about online organic chemistry tutoring
Aristotle covers the full two-semester organic chemistry sequence: 205 individually tracked skills across 52 topics. That includes structure and bonding, acids and bases, stereochemistry, reaction mechanisms, substitution and elimination, alkene and alkyne reactions, spectroscopy, aromaticity, carbonyl chemistry, enolates, amines, and multistep synthesis. Because every skill is tracked, the tutor always knows what you have mastered and what to teach next.
Yes, and mechanisms are where most students need the help. Memorizing reactions falls apart by the second midterm; understanding why electrons move where they do does not. Aristotle has you push the curved arrows yourself on the whiteboard, asks why the nucleophile attacks where it does, and builds that electronic intuition from formal charge and resonance up through SN1, SN2, E1, and E2.
Yes. The curriculum has a full unit on spectroscopy and structure determination, covering mass spectrometry, IR, and NMR, and a unit on multistep synthesis and retrosynthesis. Aristotle works these the way an exam does: you propose a structure or a route on the whiteboard, explain your reasoning out loud, and the tutor probes the steps you are least sure of.
You talk through problems out loud while drawing on a shared whiteboard with Aristotle: sketching bond-line structures, pushing curved arrows, or assigning R and S configurations. The tutor listens to your reasoning, asks questions instead of handing you answers, and guides you until you can do it yourself. Sessions start whenever you are ready, with no scheduling.
College-level STEM tutors charge $60 to $100 an hour, which comes to $720 to $1,200 a month at three hours a week. Aristotle costs $299 a month for unlimited sessions across every subject, or $49 for a single session. During exam weeks, when you need hours of help instead of one, the flat plan is the difference.
Chatbots hand you an answer and forget you when the chat ends. Aristotle teaches the way expert tutors do: it asks you to explain your thinking, finds the misconception underneath a wrong answer, and guides you with questions until you can solve the problem yourself. It also remembers what you have mastered across sessions and plans what to teach next. Sessions are reviewed, and every response is checked.
Yes. Organic chemistry struggles usually trace back to an earlier gap: shaky acid-base chemistry, resonance, or the general chemistry underneath it all. Every skill on the map is linked to its prerequisites, so Aristotle finds the exact earlier skill that is missing and rebuilds from there instead of repeating the same lecture. You can track which skills you have mastered on your map, so you always know where you actually stand.
Yes. Sessions are unlimited and available 24/7 with no scheduling, so the night before the exam you can work through mechanisms at 1am for as long as you need. Even a week is enough to matter: Aristotle has improved thousands of grades over 22% within a week. And explaining every step out loud to a tutor beats rereading your notes.
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