6-Methoxy-2,6-dimethylheptanal (F-1; CAS# 2439-41-2; methoxymelonal, methoxymelolal) is a colorless to pale yellow viscous liquid with a light floral odor, slightly fruity note with a watery citrus character. It is fresh, herbaceous and slightly fruity with melon connotations. Fresh, watermelonlike notes have been popular in perfumery for several years.

The material shows good tenacity of ~2 days on blotter and is moderately alkali-stable. This aldehdye may be used in fl oral and herbal compounds for functional and cosmetic perfumery. The recommendation for 6-methoxy-2,6- dimethylheptanal fragrance usage levels is up to 1% in the fragrance concentrate. The material is not for flavor use.

6-Methoxy-2,6-dimethylheptanal may be used to add a fresh fl orality to a variety of odor types. It combines especially well with green, citrus and fl oral bouquets, especially in shampoos and other toiletries.

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