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ISOPROPYLQUINOLINE.

Questionable CAS 1333-53-5 / 135-79-5 / PERFUMING

Isopropylquinoline is an aroma compound widely used in perfumery, recognized for its distinct leathery, animalistic, smoky, and green scent. While some antioxidant and preservative properties have been suggested, its direct therapeutic or cosmetic benefits for the skin are not thoroughly documented in current research.

perfuming

Science

Primarily, Isopropylquinoline functions as a potent fragrance component, contributing specific aromatic notes to formulations. Although some sources indicate potential antioxidant activity and a role as a preservative, a detailed mechanism of action demonstrating direct cosmetic or therapeutic benefits on the skin, beyond its perfuming properties, has not been established in the provided data.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

Isopropylquinoline is primarily utilized for its aromatic properties rather than direct functional skincare benefits. Therefore, it is not an ingredient commonly associated with exaggerated efficacy claims or 'dusting' in the precision skincare industry.


The Formula

Solubility
Oil
Optimal pH 2 – 11
0 7 14

Stability

This ingredient demonstrates high odor strength and excellent stability across a wide range of product formats and pH values, maintaining its aromatic integrity effectively between pH 2 and 11.


Safety

CIR Status
Not reviewed
Max tested
2%
Sensitization risk Low

GHS classifications identify Isopropylquinoline as harmful if swallowed, potentially fatal in contact with skin at high concentrations, and an irritant to both skin and eyes. However, a study found no skin sensitization in humans at a 2% concentration when applied in petrolatum, which aligns with its recommended usage levels in fragrance concentrates.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Questionable

Primarily a potent fragrance compound with a unique aroma profile, Isopropylquinoline offers no established direct skin benefits for precision skincare, and requires careful formulation due to safety considerations at higher concentrations.


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