OpenOChem Cloud

Elevate Your Chemistry Instruction with OpenOChem

Exclusively Designed for Chemistry Enthusiasts by Experts

Are you a chemistry educator looking for a tailored solution for your chemistry assessments? Discover OpenOChem - the specialized tool crafted by chemistry professors, dedicated to revolutionizing how you learn and teach chemistry.

  • Automatic Grading & Custom Question Creation: Save time with auto-graded assessments and tailor your learning experience with our easy-to-use question creation tool.
  • Extensive Question Database: Benefit from our ever-growing repository of thousands of specialized questions, perfect for practice, homework, and assessments.
  • Innovative Assessment Methods: Engage with various question types like Factor Labels, Embedded Answer, 2D/3D Structural Questions, and more, designed to challenge and enhance your understanding.
  • Unlike other "do all" homework systems, OpenOChem was designed from the ground up for creating, sharing, and administering Chemistry assessments.

OpenOChem is a homework/quizzing system that plugs in to your existing LMS or use our custom LMS .

Instructor? Get started now!
Request a KeyStart using OpenOChem Now
  • Request a Key
  • Have you IT Department Install OpenOChem your LMS

Are you a student?

Checkout OpenOChem Learn available here!

OpenOChem Learn is our interactive online Organic Chemistry Textbook for Students powered by OpenOChem Cloud.

Why OpenOChem?

Designed by chemistry professors!

No other assessment system has these question types to challenge your students!

All of them are automatically graded for you.

Easily create your own questions.

Ever growing database of over 3500 questions you can use for practice, homework or assessment.

Factor Labels (unit conversions) question type!

Help your students overcome their fear of unit analysis. Student can observe the units canceling out as they add and invert factors.

Embedded Answer question type.

Easily ask pointed questions with embedded questions. This is a simple example of the flexibility this question type offers.

Mutltistep Synthesis Questions!

Students draw reactants, intermediates, products and/or insert reagents from a scaffolding.

3D Structural Questions

Students construct 3D structures! This example uses the conformer option in which a specific conformer is required.

2D Stuctural Questions.

Have your students draw 2D structures or mechanisms. This is an example of an acyl substitution mechanism. In this example the student are expected to construct the entire mechanim. There is an arrows-only option in which students only add the curved arrows to the reaction mechanism.

2D Selection Questions

Students select atoms, molecules or other elements. In this example

Scaffolded Nomenclature and Electron Configurations

Currently we have scaffolds for Organic, Inorganic and electronic configurations. This is an example of the electron configuration scaffold.

Formula/Math Questions

Eash student get a different version of the problem. Like all of our question types its simple to create your own math questions.

Your Content Unchained!

No longer are you held captive by your LMS. OpenOChem empowers you to create rich chemistry questions and activities with feedback! If your institution switchs LMS's then all your questions and activites are preserved!

Awesome Features!

Designed for Organic Chemistry


Free Navigation or sequential with specific and/or general feedback

Adaptive Quizzing

Easily build quizzes that adapt to students

Flexible OChem Taxonomies

Classify, search and create random questions based on taxonomies

2D Structural Questions

Students draw simple to compex stuctures - stereochemistry aware

3D Structures and Conformers

Students build up simple to complex structures or conformers

Reaction Mechanisms Questions

Test your students mechanism

Newman Projections

Students build Newman projections with drag and drop interface

Easy media creation!

Tools to create and draw chemical structures, reactions and mechanisms in question text.

Formula Questions

Who says there's no math in OCHem.

Conventional Questions

Yes you can do boring Multichoice, Multianswer, T/F and Essay