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Chemical & Physical Properties: Merck Index

How to Search the Merck Index for CAS Registry Number Information

1. Click on the Merck Index link.

2. Enter the name of the material into the quick search box at the top of the screen and click the search button:

search box screenshot


3. Find your material within the results list and click on its name to open the full monograph:

 entry screenshot


4. As can be seen within the above screenshot, CAS registry number information is provided near the top of the monograph:

CAS registry number screenshot

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