2-ISOBUTYLQUINOLINE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

2-ISOBUTYLQUINOLINE

Safety grade: A

2-Isobutylquinoline is a synthetic aromatic compound with a distinctive woody, earthy scent. It is commonly used as a fragrance ingredient to add depth and character to perfumes and scented cosmetic products.

This ingredient is used in cosmetic products solely to impart or enhance fragrance, contributing a rich, earthy, and woody aroma to perfumes, lotions, and other scented formulations.

Graded using: COSING.

Last verified: May 26, 2026