3,4-DIMETHYLCYCLOPENTANE-1,2-DIONE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

3,4-DIMETHYLCYCLOPENTANE-1,2-DIONE

Safety grade: A

This is a synthetic aromatic compound that produces a sweet, caramel-like or nutty scent. It is a small organic molecule created in a laboratory to provide a pleasant fragrance note.

It is used in cosmetic products as a fragrance ingredient to add or enhance a pleasant smell in the final formulation.

Graded using: COSING.

Last verified: May 26, 2026