Search PubChem vs ChemLens

The app allows to search compounds through PubChem and helps to keep information on solutions made of those compounds. I. Compounds Tab Search the open chemistry database 'PubChem' at the National Institutes of Health (NIH) for chemical compounds. The app helps to find a compound by name from the collection of more than 111 million compounds. It downloads and stores the molecular formula, weight, and structure. Compounds 1. Selecting the "Compounds" tab will present a list of compounds. - If there are any solutions made of a compound, a droplet will appear next to the compound's name. 2. When a compound is selected, a view with the detailed information will appear. Follow the instruction in "Details for a compound". 3. When the "+" button is selected, a view for search will appear. Follow the instruction in "Search for a compound". Details for a compound 1. Click "Compounds" to return back to the table of compounds. 2. Click the magnifier icon to open the compound's PubChem page in the user's default web browser. 3. Click the trashcan icon to delete the compound. This function may not be available if there is a solution made of the compound. 4. Click one of the solutions made of the compound to display the information. See "Details for a solution" below. 5. Click "3D" to display a 3D structure. Use pan and pinch gestures to rotate and zoom the scene. Search for a compound 1. Select "Compound Name" ("CID") and type a compound name (PubChem CID). 2. Click "Search" to connect to PubChem. An activity indicator will appear until the search is finished. - If the search succeeds, the downloaded information will appear. - If the search fails, an alert will appear. 3. Click "Save" to store the information about a compound. 4. Click "Cancel" to dismiss the scene. II. Solutions Tab Choose compounds downloaded from PubChem and make a solution. The app allows to record a list of compounds with amounts dissolved in a solution. For the saved solutions, the app displays their compositions in gram and mol. Solutions 1. Selecting the "Solutions" tab will present a list of solutions. 2. When a solution is selected, a view with the detailed information will appear. Follow the instruction in "Details for a solution". 3. When the "+" button is selected, a view for search will appear. Follow the instruction in "Making a solution". Details for a solution 1. Click "Solutions" to return back to the table of compounds. 2. Click the 'action' icon to share a csv file containig the information about the solution. 3. Click the trashcan icon to delete the solution. 5. Choose the unit among gram, mg, mol, and mM. 6. Select one of compounds to display its structure and formula. See "Mini details for a compound" below. Making a solution 1. Click "Add Compounds" to bring a collection of compounds. See "Compounds collection" below. 2. The names of the compounds selected from "Compounds collection" will be displayed as “Solution Label”. A user can edit “Solution Label”. 3. The unit for the amount can be chosen among gram, mg, mol, and mM. 4. The amount may be entered. 5. Click "Save" to create and add a new solution. 6. Click "Cancel" to dismiss the scene. Compounds collection 1. Select or deselect compounds by clicking the images of compounds. 2. Selected compounds will be displayed. 3. Click "Done" to return back to "Making a solution". 5. Click "Cancel" to dismiss the scene.

ChemLens turns your camera into a chemistry lens. Point it at any everyday object — a wooden chair, a plastic bottle, a glass cup, a metal coin — and ChemLens identifies what it is and shows you the materials, elements, and environmental footprint behind it. Curious students, science teachers, and anyone who loves learning will find ChemLens a friendly way to connect the chemistry they study with the objects they touch every day. WHAT YOU GET FROM EACH SCAN • Object identification — name, category, and a one-line composition summary • Chemical composition — the main constituents and their estimated percentages, shown as a clean bar chart • Elemental breakdown — the key chemical elements (O, Si, C, Fe, S, and more) with short, plain-language notes • Environmental impact — rough carbon footprint, water use, and recyclability estimates • Material origins — where these materials typically come from and a bit of history • Suggested reading — curated links (mostly Wikipedia) so you can dive deeper into anything that catches your interest KEY FEATURES • Scan with your camera or upload a photo from your gallery • Bilingual interface — English and Simplified Chinese, switchable any time including on the login screen • Personal scan history with search and material filters • Bookmark any scan to revisit it later • Cloud sync — your scan history follows you across devices once you sign in • Privacy-first camera — the camera is off whenever you leave the Scan tab, so your privacy indicator stays off • Account control — full account-delete option built right into Settings EDUCATIONAL, NOT A LABORATORY ChemLens is a learning tool, not a chemical analyzer. Every result is the AI's educated guess from a single photo — useful for sparking curiosity and reinforcing classroom topics, but not a substitute for lab analysis, safety information, or medical advice. The model is told to be conservative, and we always show you the source disclaimer.