Cyclohexane, 1-methyl-4-(1-methylethyl)- (CAS 99-82-1) — Woody Middle Note Fragrance Ingredient

ByThe Good Scents
Woody · Balsamic

Cyclohexane, 1-_methyl-_4-_(1-_methylethyl)_-

CAS 99-82-1

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

What Is Cyclohexane, 1-_methyl-_4-_(1-_methylethyl)_-?

Cyclohexane, 1-methyl-4-(1-methylethyl)- is a synthetic aromatic compound used in perfumery for its clean, woody scent. Found in many household products like detergents and air fresheners. This ingredient adds structural depth to fragrances, creating longevity and enhancing other notes without overpowering them.

Safety Profile

GENERALLY SAFE
Generally safeUse with awarenessProfessional use
✓ Safe in regulated products
⚠ Check for skin sensitivity
CAS
99-82-1
Formula
Mixture
MW
Variable
Odor Family
Woody · Balsamic
Layer 1 · Enthusiast

What Does Cyclohexane, 1-_methyl-_4-_(1-_methylethyl)_- Smell Like?

This molecule offers a crisp, woody aroma with subtle peppery undertones. The scent evolves from a sharp, almost camphoraceous opening to a warm, resinous dry-down. Think of freshly cut pine mixed with a whisper of black pepper – clean yet complex.

Scent Profile
Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

Cyclohexane derivatives are crucial in synthetic perfumery. This particular isomer is produced through catalytic hydrogenation of corresponding aromatic precursors. The methyl and isopropyl groups create steric hindrance that influences volatility and odor characteristics.

Physical & Chemical Properties

Boiling PointNot specified
DensityNot specified

Perfumer Guide

Note Position
Middle
Volatility
Medium (2-4 hours)
Blending
Good
ApplicationTypical %RangeNotes
Functional Fragrances5-12%Up to 20%Provides clean woody backbone
Fine Fragrance2-5%Up to 8%Used as modifier

Classic Accords

Tip: Use to add structural depth without dominating the composition.

Alternatives & Comparisons

1
Limonene CAS 138-86-3

Offers similar freshness with citrus character.

2
Pinene CAS 80-56-8

Provides sharper pine-like woody notes.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No current IFRA restrictions.

RIFM Assessment

No specific RIFM assessment found for this isomer.

Sustainability

Synthetic production allows for consistent quality and reduced environmental impact compared to some natural alternatives. Modern catalytic processes minimize waste and energy use.

Explore Cyclohexane, 1-_methyl-_4-_(1-_methylethyl)_-

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References

  1. PubChem Compound Summary CID not specified

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

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