Pentanedioic acid, 1-(4-formyl-2-methoxyphenyl) 5-[(1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl] ester (CAS 2308574-23-2) — Woody Heart to base Note Fragrance Ingredient

Woody · Floral

Pentanedioic acid, 1-(4-formyl-2-methoxyphenyl) 5-[(1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl] ester

CAS 2308574-23-2

Origin
synthetic
Note
Heart to base
IFRA
Use with awareness
Data as of: Apr 2026

What Is Pentanedioic acid, 1-(4-formyl-2-methoxyphenyl) 5-[(1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl] ester?

This synthetic fragrance ingredient is a specialized ester compound used in high-end perfumery. Consumers might encounter it in niche or luxury fragrances where complex scent architectures are prized. Its molecular structure combines floral-aldehydic and woody-ambergris characteristics, making it valuable for creating sophisticated accords that evolve beautifully on skin.

Safety Profile

USE WITH AWARENESS
Generally safeUse with awarenessProfessional use
No major restrictions reported
Limited safety data available
CAS
2308574-23-2
Formula
Mixture
MW
Variable
Odor Family
Woody · Floral
Layer 1 · Enthusiast

What Does Pentanedioic acid, 1-(4-formyl-2-methoxyphenyl) 5-[(1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl] ester Smell Like?

This ester presents an intriguing duality – opening with crisp floral aldehydic tones reminiscent of crushed violet petals dipped in citrus, then unfolding into a sophisticated woody-ambergris heart with creamy undertones. The dry-down reveals a subtle musky warmth with vanillic facets, creating exceptional longevity. When diluted, it behaves like a molecular accord itself, offering both diffusion and tenacity.

Scent Profile
Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

This ester belongs to the class of substituted phenyl pentanedioates, combining a vanillin-derived aromatic moiety with a menthol-derived terpenoid structure. The synthesis typically involves esterification of the diacid with the respective alcohol and aldehyde precursors under controlled conditions. The stereochemistry at the cyclohexyl ring (1R,2S,5R configuration) contributes significantly to its odor profile, with the isopropyl group creating steric hindrance that modulates volatility.

Physical & Chemical Properties

Perfumer Guide

Note Position
Heart to base
Volatility
Moderate (2-6 hours)
Blending
Good
ApplicationTypical %RangeNotes
Fine Fragrance0.5-2%Up to 5%Used as complex modifier
Functional Fragrance0.1-0.5%Up to 1%For premium applications only

Classic Accords

Tip: Use as a bridge between floral top notes and woody base materials.

Alternatives & Comparisons

1
Verdox CAS 88-41-5

For simpler woody-green effects without the aldehydic complexity.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

Not currently restricted by IFRA standards.

RIFM Assessment

No RIFM assessment publicly available.

Sustainability

As a synthetic material, this ingredient avoids natural resource depletion concerns. However, its multi-step synthesis requires careful solvent management and energy inputs. The complex structure makes biodegradability profile currently unknown – recommended for applications where environmental release is minimized.

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References

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

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