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6-ACETYL-1,1,2,4,4,7-HEXAMETHYLTETRALIN (AHTN) is a synthetic musk used primarily as a fragrance ingredient and fixative in perfumes, detergents, cosmetics, and personal care products. It provides a warm, musky base note and helps other scents last longer. However, it is persistent and bioaccumulative, meaning it does not break down easily and can accumulate in the environment and living organisms. Due to these ecological concerns, its use is restricted under international fragrance guidelines. It is also known by its trade name, Tonalide.
Specifications | Results | |
Appearance | White or off-white solid particles | Complies |
Assay(%) | 98.0% ~ 100.0%. | 98.83% |
Melting Point | 52.00~57.00 | 54.90 |
Fragrance | It has a strong musk and phenolic aroma | Complies |
Conclusion | It meets the quality inspection standards. | |
6-ACETYL-1,1,2,4,4,7-HEXAMETHYLTETRALIN (often abbreviated AHTN) is a synthetic chemical compound primarily known for its musky fragrance. It is a member of the polycyclic musk family, a class of synthetic aromatics designed to mimic the scent of natural musk, which originally came from the musk deer.
Function: It is a fragrance ingredient and fixative. Its main job is to provide a long-lasting, warm, and sweet musky odor base in a formulation. As a fixative, it helps slow the evaporation of more volatile top and middle notes, making the overall scent last longer.
Primary Application: It is extensively used in the fragrance industry for:
Perfumes, colognes, and eau de toilette
Detergents and fabric softeners (to impart a lasting "clean" scent on clothes)
Soaps, shampoos, and other personal care products
Household cleaning products
Stability: It is very stable under various conditions (like high pH in detergents), non-volatile, and relatively inexpensive to produce, making it highly popular for decades.
Environmental Concern: Like other nitro and polycyclic musks, AHTN is persistent and bioaccumulative. This means it does not break down easily in the environment and can build up in the tissues of aquatic organisms and humans.
Regulation: Due to these concerns, its use is restricted under regulations like IFRA (International Fragrance Association) standards. While not banned outright, its application is limited, and the fragrance industry has been moving towards more biodegradable alternatives.
In short, 6-ACETYL-1,1,2,4,4,7-HEXAMETHYLTETRALIN (AHTN) is a synthetic musk widely used to add a long-lasting scent to perfumes, detergents, and cosmetics, though its environmental persistence has led to increased regulation.
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