Distillates, petroleum, hydrotreated heavy naphthenic (CAS 64742-52-5) — Woody N/A Note Fragrance Ingredient

ByThe Good Scents
Woody · Balsamic

Distillates, petroleum, hydrotreated heavy naphthenic

CAS 64742-52-5

Origin
synthetic
Note
N/A
IFRA
Professional use
Data as of: Apr 2026

What Is Distillates, petroleum, hydrotreated heavy naphthenic?

Petroleum distillates are refined hydrocarbons encountered in industrial lubricants, fuel additives, and some household products. While not typically used in perfumery, their derivatives may appear in synthetic fragrance bases. These materials matter because they represent the intersection of petrochemical science and modern perfumery’s need for consistent, scalable ingredients.

Safety Profile

PROFESSIONAL USE
Generally safeUse with awarenessProfessional use
⚠ Industrial chemical – not for consumer handling
☢ Potential hydrocarbon exposure risks
CAS
64742-52-5
Formula
Mixture
MW
Variable
Odor Family
Woody · Balsamic
Layer 1 · Enthusiast

What Does Distillates, petroleum, hydrotreated heavy naphthenic Smell Like?

Hydrotreated heavy naphthenic distillates typically have a faint, nondescript petroleum odor – characterized by waxy, slightly paraffinic notes with minimal aromatic character. The odor profile is generally considered unappealing in isolation, lacking the complexity or pleasant top notes required for fragrance applications.

Scent Profile
Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

These complex hydrocarbon mixtures are produced through catalytic hydrotreatment of petroleum fractions to remove sulfur and nitrogen compounds. The process saturates aromatic rings, creating predominantly cycloalkane (naphthenic) structures with some paraffinic side chains. The exact composition varies by source crude and processing conditions.

Physical & Chemical Properties

AppearanceColorless to pale yellow liquid
Boiling Range200-400°C

Perfumer Guide

Note Position
N/A
Volatility
Very low
Blending
Industrial
ApplicationTypical %RangeNotes
IndustrialN/AN/ANot a fragrance ingredient

Classic Accords

Tip: Not applicable for perfumery applications.

Alternatives & Comparisons

1
White mineral oil CAS 8042-47-5

Highly refined hydrocarbon fraction with better odor profile for cosmetic applications.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

Not regulated by IFRA – industrial material outside scope.

GHS Classification

H304 May be fatal if swallowed H315 Causes skin irritation

RIFM Assessment

Not evaluated by RIFM – industrial chemical.

Sustainability

Petroleum-derived materials raise environmental concerns regarding fossil fuel dependence and carbon footprint. Modern refineries employ advanced hydrotreatment to minimize waste and emissions, but sustainable alternatives are increasingly sought in fragrance applications.

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References

  1. API Publication 4661 (2001). Petroleum Hydrocarbon Categories. API Standard
  2. CONCAWE (2018). Petroleum streams category assessment. Industry Report

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

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