2-Heptanol, 3,6-dimethyl- (CAS 1247790-47-1) — Green Middle Note Fragrance Ingredient

ByThe Good Scents
Green · Woody

2-_Heptanol, 3,_6-_dimethyl-

CAS 1247790-47-1

Origin
synthetic
Note
Middle
IFRA
Generally safe
Data as of: Apr 2026

What Is 2-_Heptanol, 3,_6-_dimethyl-?

2,6-Dimethyl-3-heptanol is a synthetic alcohol used as a fragrance ingredient. It’s found in various consumer products like soaps and detergents. This compound contributes fresh, green, and slightly woody notes to fragrances, making it valuable for creating natural-smelling accords.

Safety Profile

GENERALLY SAFE
Generally safeUse with awarenessProfessional use
✓ No major safety concerns at typical usage levels
⚠ Limited toxicological data available
CAS
1247790-47-1
Formula
Mixture
MW
Variable
Odor Family
Green · Woody
Layer 1 · Enthusiast

What Does 2-_Heptanol, 3,_6-_dimethyl- Smell Like?

2,6-Dimethyl-3-heptanol presents a crisp, green aroma reminiscent of freshly cut grass with subtle woody undertones. The initial burst carries a slightly metallic sharpness that quickly mellows into a clean, herbaceous heart. As it dries down, it reveals a faintly sweet, almost citrus-like freshness that blends seamlessly with other green notes. Its medium volatility makes it useful for bridging top and middle notes in compositions.

Scent Profile

In Famous Fragrances

Fragrance associations may not reflect actual formulations.

Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

2,6-Dimethyl-3-heptanol is a branched-chain aliphatic alcohol synthesized through hydroformylation or Grignard reactions. As a secondary alcohol with two methyl branches, its structure influences both volatility and odor characteristics. The molecular asymmetry creates potential for stereoisomers, though commercial material is typically a racemic mixture. Its green odor profile stems from the specific carbon chain length and branching pattern.

Physical & Chemical Properties

Perfumer Guide

Note Position
Middle
Volatility
Medium (2-4 hours)
Blending
Good
ApplicationTypical %RangeNotes
Functional Fragrances0.5-2%Up to 5%Provides fresh green accent
Fine Fragrance0.1-0.5%Up to 1%Background modifier

Classic Accords

Tip: Use to add naturalistic green nuances without overwhelming the composition.

Alternatives & Comparisons

1
Leaf Alcohol CAS 928-96-1

(Z)-3-Hexenol for more intense fresh-cut grass character

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

General reference only. Consult current IFRA Standards Library before formulating.

IFRA Status

No IFRA restrictions currently apply.

RIFM Assessment

No RIFM assessment available due to limited commercial use.

Sustainability

As a synthetic material, 2,6-dimethyl-3-heptanol doesn’t rely on agricultural resources. Production typically uses petrochemical feedstocks, though bio-based routes may be possible. Its efficient odor impact allows for low usage levels, reducing environmental load.

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References

    Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.

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