Dimethyl Heptanol
Chinese name: 二甲基庚醇
English name: Dimethyl Heptanol
CAS No.: 13254-34-7
Key Characteristics
Fruity nuances: reminiscent of unripe banana and apple peel with green, unripe nuances.
Green notes: pronounced stem–leaf freshness, strongly evocative of crisp cucumber.
Alcoholic tones: rum-like and white-wine-like fermented facets when diluted.
Woody undertone: accompanied by a light, dry woody nuance.
Highly intense and penetrating, it spreads rapidly as a top-note material, delivering a vivid, energetic first impression.
Its green-fruity characteristics closely resemble odor molecules found in many natural plants. Even a small dose dramatically improves a formula’s naturalness and freshness, reducing the impression of synthetic artifice.
As an alcohol, it is relatively stable. Due to its high volatility, it mainly functions in the top-to-mid stages of a fragrance and displays moderate longevity.
Primary Applications
Perfumes: Provides a fresh, green top note and breaks through heaviness in modern fougère, chypre, and fruity fragrances.
Personal care: Delivers an exceptionally fresh, clean aromatic impression, making it widely used in shampoos, shower gels, mouthwashes, shaving creams, and similar products.
Household cleaners: Conveys the perceptions of “effective cleaning” and “natural freshness” with its green character when included in dish detergents, laundry liquids, and surface cleaners.
Usage Recommendations and Precautions
Dosage: Extremely low dosage is sufficient. Due to its high strength, the final fragrance typically requires only minimal addition (typically 0.01%–0.5%) to generate a notable effect. Excessive use can introduce unpleasant green harshness and fatty notes.
Safety: In fragrance applications, IFRA imposes no specific restriction.
Blending Recommendations:
- With floral notes: Strengthens the freshness and greenness of a formula when blended with lavender, muguet, or violet leaf materials.
- With fruity notes: Enhances naturalness and complexity in fruity profiles when used with isoamyl acetate (banana), allyl hexanoate (pineapple), and various strawberry aldehydes.
- Eliminating dullness: In heavy woody, musky, or powdery compositions, adding trace amounts (<0.1%) can effectively lift the entire accord and increase transparency.
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