Look Up Chemical Compound Properties
Identify chemical compounds by name, CAS number, or SMILES string and retrieve molecular weight, formula, and structure data.
Look Up and Compare Periodic Table Elements
Get detailed properties for any element and compare elements side by side across physical, chemical, and electronic characteristics.
Quick answer: Use the Chemistry Lookup tool through ToolRouter to look up and compare periodic table elements directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolPeriodic table reference questions come up constantly in chemistry, materials science, and engineering — and the answers are never quite where you need them. Atomic weight, electronegativity, ionisation energy, electron configuration, melting point, and density are all needed for different calculations, yet pulling them together from standard references takes time and error-prone transcription.
The element_info and compare_elements skills return complete property sets for any element, and allow direct comparison between multiple elements across all key parameters. The data is drawn from authoritative sources and covers physical, chemical, electronic, and nuclear properties.
Chemistry and physics students solving problems, materials engineers selecting alloy components, educators building comparative curriculum materials, and researchers working across element families all use this as their first-stop element reference.
How to look up and compare periodic table elements with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Claude combines element property data with chemical reasoning — explaining why a particular electronegativity value matters for bonding, what an electron configuration tells you about reactivity, or why two elements with similar atomic numbers behave so differently. It connects the numbers to the chemistry.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
How to look up and compare periodic table elements with Claude
Once connected (see setup above), use the Chemistry Lookup tool:
- Ask: "Get element properties for silicon using chemistry-lookup"
- Claude returns atomic number, weight, electron configuration, and physical properties
- Ask: "How do silicon's properties make it useful for semiconductors?"
- Request: "Compare silicon and germanium using chemistry-lookup"
Example prompt for Claude
Try this with Claude using the Chemistry Lookup tool
Look up the properties of lithium, sodium, and potassium using chemistry-lookup. Compare their electronegativity, ionisation energies, and atomic radii, and explain the trend you see.
Tips for Claude
- Ask Claude to explain property trends across a period or group for deeper understanding
- Compare elements across a transition metal row to understand d-orbital effects
- Ask about industrial applications alongside raw properties for real-world context
ChatGPT presents element comparison data in structured tables and written analyses, making it ideal for educational explanations, study guides, and materials selection summaries. It explains property differences in plain terms without assuming specialist knowledge.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
How to look up and compare periodic table elements with ChatGPT
Once connected (see setup above), use the Chemistry Lookup tool:
- Ask: "Compare copper, silver, and gold using chemistry-lookup"
- ChatGPT returns a comprehensive property comparison
- Request: "Format this as a comparison table suitable for a study guide"
- Follow up: "What makes gold the best choice for electronics despite silver's higher conductivity?"
Example prompt for ChatGPT
Try this with ChatGPT using the Chemistry Lookup tool
Compare the properties of iron, cobalt, and nickel using chemistry-lookup. Present as a table showing atomic number, mass, electronegativity, melting point, and density, then explain the key differences.
Tips for ChatGPT
- Ask for both the data table and a written interpretation for comprehensive study materials
- Request comparisons within a specific group or period to reveal periodic law patterns
- Ask ChatGPT to highlight which property differences are most significant for material selection
Copilot provides structured element property data for building interactive periodic table applications, chemistry education tools, and materials selection calculators. The comprehensive property sets cover everything needed for a feature-complete element reference.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
How to look up and compare periodic table elements with Copilot
Once connected (see setup above), use the Chemistry Lookup tool:
- In Copilot Chat: "Get element properties for carbon using chemistry-lookup"
- Copilot returns comprehensive element data
- Ask: "Generate a TypeScript interface for the element properties response"
- Request: "Write a function that compares two elements and returns the percentage difference in each property"
Example prompt for Copilot
Try this with Copilot using the Chemistry Lookup tool
Fetch properties for all noble gases using chemistry-lookup and return as JSON with atomic number, name, symbol, atomic weight, boiling point, and electron configuration.
Tips for Copilot
- Pre-load all 118 elements at startup for an interactive periodic table with zero latency
- Use electronegativity and ionisation energy data to power bond prediction features
- Build group and period filters using atomic number — no additional metadata needed
OpenClaw processes element data requests for the entire periodic table or any subset in a single batch run, making it ideal for building chemistry reference databases, materials science datasets, and educational platforms that need comprehensive, up-to-date element data.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsHow to look up and compare periodic table elements with OpenClaw
Once connected (see setup above), use the Chemistry Lookup tool:
- Run: "Get properties for all transition metals using chemistry-lookup"
- OpenClaw returns a complete dataset for all transition metal elements
- Load into your chemistry platform or research database
- Refresh annually to capture any updated standard atomic weights
Example prompt for OpenClaw
Try this with OpenClaw using the Chemistry Lookup tool
Get element properties for all 118 elements using chemistry-lookup. Return as a JSON array sorted by atomic number with symbol, name, atomic weight, group, and period.
Tips for OpenClaw
- Pull the full periodic table once and cache it — element properties are effectively immutable
- Structure the dataset by group and period for efficient filtering in chemistry apps
- Include electron configuration in the batch pull to enable orbital-based filtering
Frequently Asked Questions
How do I look up and compare periodic table elements with an AI assistant?
Get detailed properties for any element and compare elements side by side across physical, chemical, and electronic characteristics. Connect the Chemistry Lookup tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Ask: "Get element properties for silicon using chemistry-lookup" Claude returns atomic number, weight, electron configuration, and physical properties
Which AI assistants can look up and compare periodic table elements?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all look up and compare periodic table elements using the Chemistry Lookup tool through ToolRouter, with no API keys or coding required.
What does the Chemistry Lookup tool do?
Look up chemical compounds, elements, safety data sheets, and molecular properties.
Related Use Cases
Access Chemical Safety Data and Hazard Information
Retrieve safety data sheet information including hazard classifications, handling precautions, and emergency procedures for any chemical.