Octahydro-4,7-methano-1H-indenemethyl acetate (CAS 30772-69-1) — Woody Base Note Fragrance Ingredient

ByThe Good Scents
Woody · Balsamic

Octahydro-4,7-methano-1H-indenemethyl acetate

CAS 30772-69-1

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

What Is Octahydro-4,7-methano-1H-indenemethyl acetate?

Octahydro-4,7-methano-1H-indenemethyl acetate is a synthetic fragrance ingredient used to add woody, amber-like notes to perfumes. It’s found in fine fragrances and personal care products. This compound enhances longevity and depth in fragrance compositions, making it valuable for creating sophisticated scents with lasting power.

Safety Profile

GENERALLY SAFE
Generally safeUse with awarenessProfessional use
✓ Safe in regulated products
⚠ Check for skin sensitivity
CAS
30772-69-1
Formula
Mixture
MW
Variable
Odor Family
Woody · Balsamic
Layer 1 · Enthusiast

What Does Octahydro-4,7-methano-1H-indenemethyl acetate Smell Like?

This ingredient offers a rich, woody aroma with subtle amber undertones. It evolves from a sharp, slightly green top note to a warm, resinous heart, settling into a smooth, long-lasting base. The scent is reminiscent of aged cedarwood blended with a touch of vanilla, creating a sophisticated and versatile profile.

Scent Profile

In Famous Fragrances

Fragrance associations may not reflect actual formulations.

Sauvage(Dior, 2015)

Used to enhance the woody-ambery base, adding depth and longevity to the fresh-spicy composition.

Bleu de Chanel(Chanel, 2010)

Contributes to the sophisticated woody-amber accord, balancing the citrus and incense notes.

Layer 2

2D Molecular Structure

Octahydro-4,7-methano-1H-indene-1(or 2)-methanol, acetate

SMILES: CC(=O)OCC1CCC2C1C3CCC2C3

Chemistry, Properties & Perfumer Guide

The Chemistry

Octahydro-4,7-methano-1H-indenemethyl acetate is a synthetic ester derived from indene. It is produced through hydrogenation and esterification processes. The molecule’s structure contributes to its stability and longevity in fragrance formulations, making it a popular choice for base notes.

Physical & Chemical Properties

Boiling PointN/A
DensityN/A

Perfumer Guide

Note Position
Base
Volatility
Low (hours-days)
Blending
Excellent
ApplicationTypical %RangeNotes
Fine Fragrance5-10%Up to 15%Adds depth and longevity
Personal Care2-5%Up to 10%Used in small amounts for stability

Classic Accords

Tip: Use in base notes to enhance woody and amber accords.

Alternatives & Comparisons

1
Ambrox CAS 6790-58-5

A more diffusive amber note with similar longevity but less woody character.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No restrictions under current IFRA standards.

RIFM Assessment

RIFM assessment confirms safety at current usage levels.

Sustainability

Synthesized from petrochemical precursors, this ingredient is produced in controlled industrial settings. Efforts are ongoing to improve synthetic routes for reduced environmental impact.

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References

  1. PubChem Compound Summary for Octahydro-4,7-methano-1H-indenemethyl acetate PubChem

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

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Ingredient Data Sheet

CAS 30772-69-1

Physical Properties

Molecular Weight208.3 g/mol🔬 PubChem
LogP (Octanol-Water)3.2🔬 PubChem
log Kp (skin permeability)-1.699💻 Calculated
SMILESCC(=O)OCC1CCC2C1C3CCC2C3🔬 PubChem

Odor & Flavor

Primary Descriptorsbalsamicwoody• leffingwell
Functional Groupsesterether💻 RDKit
Data Sources & Attribution
Physical data: PubChem (NIH/NLM), U.S. EPA CompTox Dashboard, EPA OPERA models, RDKit. Odor & flavor: Arctander (Perfume & Flavor Chemicals), Fenaroli's Handbook of Flavor Ingredients, Leffingwell. Thresholds: van Gemert (Compilations of Odour Threshold Values). Regulatory: IFRA Standards 51st, FEMA GRAS. Trade names: Surburg (Common Fragrance & Flavor Materials). All data compiled and cross-referenced for perfumertools.com.

Physicochemical Properties

DTXSID: DTXSID1051989

Physical Properties

Molecular Weight 208.3 g/mol🔬 PubChem

Partition & Solubility

LogP (Octanol-Water) 3.2 Log10 unitless🔬 PubChem

Molecular Descriptors

Topological Polar Surface Area 26.3 Ų💻 Computed
H-Bond Donors 0 count💻 Computed
H-Bond Acceptors 2 count💻 Computed
Rotatable Bonds 2 count💻 Computed
Molar Refractivity 57.17 cm^3/mol💻 Computed

Data Sources:

🔬 EPA Experimental data from U.S. EPA CompTox Chemicals Dashboard & CTX APIs. 📊 OPERA Predicted using EPA's OPERA QSAR models. 💻 Computed Calculated from SMILES using RDKit.

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