14H-Benz[4,5]isoquino[2,1-a]perimidin-14-one (CAS 6829-22-7) — Citrus Unknown Note Fragrance Ingredient

Citrus · Floral

14H-Benz[4,5]isoquino[2,1-a]perimidin-14-one

CAS 6829-22-7

Origin
synthetic
Note
Unknown
IFRA
Professional use
Data as of: Apr 2026

What Is 14H-Benz[4,5]isoquino[2,1-a]perimidin-14-one?

14H-Benz[4,5]isoquino[2,1-a]perimidin-14-one is a synthetic fragrance compound rarely encountered in consumer products. Its complex structure makes it a niche ingredient primarily used in experimental perfumery. This molecule represents the cutting edge of fragrance chemistry, where novel structures are designed to push olfactory boundaries. While not commonly found in mainstream fragrances, it exemplifies how synthetic chemistry creates entirely new scent experiences beyond what nature provides.

Safety Profile

PROFESSIONAL USE
Generally safeUse with awarenessProfessional use
Limited safety data available
Requires professional handling
CAS
6829-22-7
Formula
Mixture
MW
Variable
Odor Family
Citrus · Floral
Layer 1 · Enthusiast

What Does 14H-Benz[4,5]isoquino[2,1-a]perimidin-14-one Smell Like?

No documented odor profile available for this obscure synthetic compound. As a complex polycyclic molecule, it would likely exhibit either extreme subtlety or intense character depending on its conformational properties. Such structures often deliver unexpected olfactory behaviors – sometimes remaining odorless despite complexity, other times producing sharp, penetrating aromas with unusual persistence. Without experimental data, its scent characteristics remain speculative.

Layer 2

2D Molecular Structure

14H-Benz[4,5]isoquino[2,1-a]perimidin-14-one

SMILES: O=C1N2C3=CC=CC4=CC=CC(N=C2C2=CC=CC5=CC=CC1=C25)=C34

Chemistry, Properties & Perfumer Guide

The Chemistry

14H-Benz[4,5]isoquino[2,1-a]perimidin-14-one belongs to the class of complex polycyclic aromatic compounds. Its structure combines benzisoquinoline and perimidine moieties, creating a rigid, planar molecular framework. Such compounds are typically synthesized through multi-step condensation reactions involving aromatic amines and carbonyl compounds. The electronic properties of this fused ring system suggest potential for interesting photophysical behavior, though its olfactory characteristics remain unexplored in published literature.

Physical & Chemical Properties

Perfumer Guide

Note Position
Unknown
Volatility
Unknown
Blending
Unknown
ApplicationTypical %RangeNotes

Classic Accords

Tip: This compound requires full safety evaluation before any perfumery application.

Alternatives & Comparisons

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

Not evaluated by IFRA

RIFM Assessment

No RIFM assessment available

Sustainability

As a purely synthetic compound with no known commercial production, sustainability considerations are not applicable. Should industrial synthesis develop, standard green chemistry principles would apply to minimize hazardous byproducts and energy consumption during manufacturing.

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References

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

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    Ingredient Data Sheet

    CAS 6829-22-7

    Physical Properties

    Molecular Weight320.3 g/mol🔬 PubChem
    LogP (Octanol-Water)4.7🔬 PubChem
    Boiling Point392 °C🔬 EPA CompTox
    Vapor Pressure0 mmHg @ 25°C📊 OPERA
    Flash Point323.7 °C🔬 EPA CompTox
    log Kp (skin permeability)-1.317💻 Calculated
    SMILESC1=CC2=C3C(=C1)C4=NC5=CC=CC6=C5C(=CC=C6)N4C(=O)C3=CC=C2🔬 PubChem

    Volatility & Performance

    Fragrance NoteBase💻 Calculated

    Odor & Flavor

    Functional Groupsaromatic💻 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: DTXSID8064482

    Physical Properties

    Molecular Weight 320.351 g/mol🔬 EPA CompTox
    Density 0.701 g/cm^3🔬 EPA CTX
    Boiling Point 501.812 °C📊 OPERA
    Melting Point 257 °C🔬 EPA CTX
    Flash Point 289.359 °C📊 OPERA
    Refractive Index 1.788 Dimensionless📊 OPERA
    Molar Volume 228.349 cm^3/mol📊 OPERA

    Partition & Solubility

    LogP (Octanol-Water) 5.155 Log10 unitless🔬 EPA CTX
    LogD (pH 5.5) 2.776 Log10 unitless📊 OPERA
    LogD (pH 7.4) 3.547 Log10 unitless📊 OPERA
    LogKoa (Octanol-Air) 11.56 Log10 unitless📊 OPERA
    Water Solubility 0 mol/L🔬 EPA CTX
    Henry's Law Constant 0 atm-m3/mole📊 OPERA

    Transport Properties

    Vapor Pressure 0 mmHg📊 OPERA
    Surface Tension 59.63 dyn/cm📊 OPERA

    Molecular Descriptors

    Topological Polar Surface Area 34.37 Ų💻 Computed
    H-Bond Donors 0 count💻 Computed
    H-Bond Acceptors 3 count💻 Computed
    Rotatable Bonds 0 count💻 Computed
    Aromatic Rings 6 count💻 Computed
    Molar Refractivity 96.503 cm^3/mol📊 OPERA
    Polarizability 38.257 Å^3📊 OPERA

    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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