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CAS Registry Number

CAS 3478-90-8 — 4,4-Diphenoxybenzophenone (EKE)

CAS 3478-90-8 C25H18O MW 334.422

4,4-Diphenoxybenzophenone (EKE) is a high-performance ultraviolet light absorber widely used in plastics, coatings, and adhesives to enhance weather resistance and prevent degradation from UV exposure. This chemical is a clear, crystalline solid with excellent photostability, making it ideal for protecting materials in outdoor applications. 4,4-Diphenoxybenzophenone has a CAS number of 3478-90-8, a molecular formula of C25H18O, and a molecular weight of 334.422 g/mol. It is non-hazardous, requiring no special signal word, and can be stored safely at ambient conditions. Molekula supplies 4,4-Diphenoxybenzophenone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

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Molekula products for CAS 3478-90-8

Molekula has supplied fine chemicals and biochemicals since 2000 from ISO 9001:2015 and ISO 14001:2015 certified facilities. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.

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