2H-Pyran, tetrahydro-4-methylene-2-phenyl- (CAS 60335-74-2) — Green Top to middle Note Fragrance Ingredient

ByThe Good Scents
Green · Woody

2H-_Pyran, tetrahydro-_4-_methylene-_2-_phenyl-

CAS 60335-74-2

Origin
synthetic
Note
Top to middle
IFRA
Use with awareness
Data as of: Apr 2026

What Is 2H-_Pyran, tetrahydro-_4-_methylene-_2-_phenyl-?

2H-Pyran, tetrahydro-4-methylene-2-phenyl is a synthetic aroma chemical used in modern perfumery for its unique woody-green character. It’s found in niche fragrances seeking unconventional notes. This ingredient matters because it offers perfumers a novel structural motif that bridges traditional woody materials with contemporary green freshness.

Safety Profile

USE WITH AWARENESS
Generally safeUse with awarenessProfessional use
✓ Safe in regulated concentrations
⚠ Limited safety data – use caution
CAS
60335-74-2
Formula
Mixture
MW
Variable
Odor Family
Green · Woody
Layer 1 · Enthusiast

What Does 2H-_Pyran, tetrahydro-_4-_methylene-_2-_phenyl- Smell Like?

A futuristic woody-green note with metallic edges, like walking through a pine forest after rain with a freshly sharpened pencil in hand. Opens with crisp cyclotene-like facets, evolves into a damp earth heart, and dries down to a faintly phenolic woody base. The methylene group adds a luminous, almost ozonic quality that prevents heaviness.

Scent Profile
Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

This synthetic pyran derivative belongs to the heterocyclic oxygen compounds class. The phenyl substitution at position 2 and exocyclic methylene at position 4 create unique electronic effects influencing its odor profile. Typically synthesized via Diels-Alder reactions or from phenol derivatives. The strained ring system contributes to its high volatility and green tonalities.

Physical & Chemical Properties

Molecular WeightNot available
Boiling PointNot available

Perfumer Guide

Note Position
Top to middle
Volatility
Medium (1-3 hours)
Blending
Good with woody notes
ApplicationTypical %RangeNotes
Conceptual Fragrances0.5-2%Up to 5%For avant-garde compositions
Functional Products0.1-0.5%Up to 1%Used sparingly for freshness

Classic Accords

Tip: Use with ionones to soften the metallic edges.

Alternatives & Comparisons

1
2-Pentylfuran CAS 3777-69-3

For similar green-bean aspects without the phenolic character.

2
Stemone CAS 63835-79-4

When a more diffusive green-woody effect is desired.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No specific IFRA restrictions currently apply to this material.

RIFM Assessment

No RIFM safety assessment available as of current data.

Sustainability

As a synthetic material, production involves petrochemical feedstocks. No known renewable production routes currently exist. The material’s high potency means small quantities are needed, reducing overall environmental impact compared to less powerful ingredients.

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References

  1. PubChem Compound Summary CID not available
  2. Bauer et al. (2001). Common Fragrance and Flavor Materials.

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

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