CAS Number Search: How to Find and Verify Chemical Products

A CAS number is the most precise way to search for a chemical product. This guide explains how to use exact CAS search and what to check after finding the product page.

Use exact CAS search

Enter the hyphenated CAS number, such as 1006-47-9, in the search bar on malongchemicals.com. The site returns the exact matching product page.

Verify with synonyms

Check the synonym list on the product page because commercial names vary between markets. The CAS number is the stable identifier across regions.

What to do if the CAS is not found

Contact the sales team with the CAS number and target quantity. The product may be available on request or through custom synthesis.

Representative products

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Frequently asked questions

Should I include hyphens when searching a CAS number?

Yes. Use the standard hyphenated format such as 4964-71-0 for the most reliable result.

Can I search by product name instead of CAS?

The site supports browsing by product name and category, but exact CAS search is the fastest way to reach the intended product.

What if my CAS number returns no result?

Send the CAS number to our sales team. The compound may be available on request or producible as a custom intermediate.

Request a quotation

Send the CAS number and target quantity to [email protected] or message us on WhatsApp.

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