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ChemIndex - a free chemical CAS search database

Popularity index： Update time： 2025-10-26
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The ChemIndex database is a free chemical CAS search database tool for finding information on over 1,800,000 distinct chemical substances.

Search on CAS registry numbers, chemical names or name fragments.

Database Highlights

A free and convenient way to get physical and chemical information on a specific chemical.
Information including suppliers list on over 1,800,000 substances, including almost all chemicals in commerce.

Disclaimer

ChemIndex database is constantly being updated.
Although every effort is made to ensure the accuracy, currency and completeness of the information, ChemIndex does not guarantee, warrant, represent or undertake that the information provided is correct, accurate or current.

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