4-METHYL-1-OXASPIROUNDECENE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

4-METHYL-1-OXASPIROUNDECENE

Safety grade: A

This is a synthetic fragrance ingredient used to give cosmetic products a pleasant scent. It belongs to a family of aroma chemicals that contribute to the overall fragrance blend in a product.

It is used in cosmetic products purely as a perfuming agent to add or enhance a desired fragrance.

Graded using: COSING.

Last verified: May 26, 2026