Diphenyl ether

Diphenyl ether (CAS 101-84-8), also known as phenyl ether, phenyl oxide, and oxydiphenyl, is an aromatic organic compound carrying the FEMA designation 3667. It carries no assigned E-code and is classified within the flavors and fragrances category for commercial supply purposes.

In personal care and cosmetic formulations, diphenyl ether functions as a fragrance ingredient, contributing a characteristic geranium-rose floral note to finished products. It also demonstrates antimicrobial activity, disrupting microbial cell membranes to provide preservation support in topical and pharmaceutical preparations, reducing reliance on conventional preservative systems.

Diphenyl ether is supplied in fragrance-grade quality compliant with REACH registration requirements and IFRA guidelines applicable to cosmetic end uses. It is available in standard drum and intermediate bulk container formats. Procurement teams should confirm FCC or equivalent purity specifications with the supplier prior to order placement.