ChemDataDoctor: Streamline Your Chemical Data Management

ChemDataDoctor offers a powerful and user-friendly solution for cleaning and validating chemical spreadsheets. Designed for efficiency and privacy, this tool helps you maintain the integrity of your chemical data by checking CAS number formats and check digits, tidying spacing, and identifying duplicate entries. Whether you are working with Excel files, CSV documents, or simply pasting data, ChemDataDoctor ensures your spreadsheets are accurate and well-organized.

• Effortless Data Cleaning: Upload your Excel or CSV files, or paste data directly from spreadsheets. Your original data remains untouched throughout the process.
• CAS Number Validation: Automatically checks the format and calculates the check digit for CAS Registry Numbers® using the established CAS method. It flags entries with incorrect formats or potential check digit mismatches.
• Duplicate Detection: Identifies and flags duplicate entries within your dataset, helping to prevent redundancy and ensure data accuracy.
• Spacing and Formatting Tidy: Cleans up inconsistent spacing and normalizes formatting issues, presenting your data in a consistent and readable manner.
• Privacy Focused: All data processing occurs directly on your device. Nothing is uploaded to the server, ensuring your sensitive chemical data remains private. No signup or account is required.
• Offline Access: Once prepared, the tool can be used offline within the same browser, allowing you to clean and validate data even without an internet connection.
• Clear Results: Review identified issues and see the cleaned results alongside the original values in downloadable Excel or CSV files.

ChemDataDoctor is an independent tool, committed to providing a reliable and accessible way to manage your chemical data. It is not affiliated with or endorsed by CAS or the American Chemical Society.