Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle

ISOHEXENYL CYCLOPENTENYL CARBALDEHYDE.

Questionable CAS 37677-14-8 / PERFUMING

Isohexenyl Cyclopentenyl Carbaldehyde, frequently referred to as Myrac Aldehyde (CAS 37677-14-8), serves primarily as a fragrance ingredient. It contributes fresh, citrusy, floral, and ozonic notes to enhance a product's olfactory profile and subtly perfume the skin.

Fragrance

Science

As an aliphatic aldehyde, Isohexenyl Cyclopentenyl Carbaldehyde functions by releasing volatile compounds that interact with olfactory receptors. This imparts a distinctive scent, thereby elevating the sensory experience of a product and leaving a fragrance on the skin.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

While generally stable under standard conditions, Isohexenyl Cyclopentenyl Carbaldehyde's integrity can be influenced by factors such as pH, temperature, and light exposure. Its aldehyde nature indicates potential reactivity. Notably, it poses a risk of spontaneous combustion when absorbed onto highly porous materials like rags or certain organic clays.

Conflicts

  • Strong oxidizing agents

Safety

CIR Status
Safe with restrictions
Sensitization risk Moderate

The safety of Myrac Aldehyde has undergone rigorous assessment by the Research Institute for Fragrance Materials (RIFM), with a peer-reviewed safety publication. The International Fragrance Association (IFRA) has established comprehensive safe use standards, including maximum acceptable concentration levels across various product categories, to proactively prevent skin sensitization. It exhibits a No Expected Sensitization Induction Level (NESIL) of 5900 μg/cm². Although generally well-tolerated when used within IFRA guidelines, a small fraction of individuals may develop skin sensitization upon repeated contact, manifesting as temporary redness, bumps, or itching. The ingredient is not classified as genotoxic, phototoxic, or photoallergenic. Specific maximum concentrations for safe use are highly variable and dependent on the product category, with typical usage in some perfume compounds ranging from 5-10%.


Your Skin

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

Our Assessment

Questionable

As a fragrance ingredient, Isohexenyl Cyclopentenyl Carbaldehyde offers no direct skincare benefits, and its potential to cause skin sensitization in a small user subset renders its inclusion in precision skincare formulations questionable, despite adherence to IFRA safety standards.


Related

Finding similar ingredients…