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TETRAHYDROINDENO-DIOXIN.

Optional CAS 18096-62-3 / PERFUMING

Tetrahydroindeno-Dioxin, often identified as Magnolan, is a synthetic bicyclic acetal primarily employed for its distinctive aromatic qualities. Its rigid molecular architecture contributes to both its specific scent profile and its stability within formulations, functioning as a fixative in the middle to base fragrance notes.

Perfuming Fragrance Fixative

Science

This ingredient operates as a synthetic bicyclic acetal, a molecular structure resulting from the Prins reaction of indene and acetaldehyde. Its rigid conformation is key to its distinctive aromatic contribution and exceptional stability within various product matrices, primarily influencing the olfactory experience rather than direct dermal biological pathways.


Research

Insufficient-data confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

This ingredient functions solely as a perfuming agent; therefore, the concept of 'dusting' related to active ingredient efficacy does not apply.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Demonstrates robust stability across a diverse range of personal care formulations, including shampoos, body lotions, and even in acidic environments such as citric acid-based cleaners.

Conflicts

  • bleach

Safety

CIR Status
Unknown
Max tested
8%
Sensitization risk Low

The Research Institute for Fragrance Materials (RIFM) concludes this ingredient can be safely used in everyday products at current usage levels. It has not been found to be genotoxic, phototoxic, or photoallergenic. While the ECHA C&L Inventory indicates a classification of 'Harmful if swallowed' in 100% of reports, 97.7% of these reports suggest it does not meet broader GHS hazard criteria. The stated 8% maximum concentration refers to its use in perfume concentrates, with final product concentrations in skincare typically being significantly lower.


Your Skin

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

Our Assessment

Optional

Primarily serving as a perfuming agent, this ingredient provides no direct dermatological benefits, making its inclusion in precision skincare formulations optional for sensory enhancement rather than active efficacy.


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