2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-(phenylazo)-, disodium salt (CAS 3567-66-6) — Citrus Not applicable Note Fragrance Ingredient
2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-(phenylazo)-, disodium salt
CAS 3567-66-6
What Is 2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-(phenylazo)-, disodium salt?
2,7-Naphthalenedisulfonic acid is a synthetic chemical primarily used in industrial applications, not in consumer fragrances. It’s encountered in dyes and specialized chemical processes. This compound has no known use in perfumery or personal care products due to its lack of olfactory properties and industrial nature.
Safety Profile
PROFESSIONAL USEWhat Does 2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-(phenylazo)-, disodium salt Smell Like?
This compound has no detectable odor in standard perfumery applications. As an industrial dye intermediate, it was not developed for fragrance purposes and lacks the volatility or olfactory characteristics required for use in perfumery.
Chemistry, Properties & Perfumer Guide
The Chemistry
2,7-Naphthalenedisulfonic acid is a synthetic aromatic sulfonic acid derivative primarily used in dye manufacturing. Its structure contains two sulfonic acid groups and an azo linkage, making it water-soluble and highly polar. The compound is produced through sulfonation and diazotization reactions, typical for azo dye intermediates. It exhibits no chiral centers and exists as a stable, crystalline solid under normal conditions.
Physical & Chemical Properties
| Primary Use | Industrial dye intermediate |
|---|---|
| Solubility | Water-soluble |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Industrial | N/A | N/A | Not for fragrance use |
Classic Accords
Tip: Not recommended for perfumery applications.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not regulated by IFRA – industrial chemical outside fragrance scope.
RIFM Assessment
No RIFM assessment – not a fragrance material.
Sustainability
This industrial chemical is produced synthetically for specialized applications. Its environmental impact is managed through industrial wastewater treatment processes. As it has no fragrance applications, it doesn’t factor into natural sourcing considerations or sustainable perfumery initiatives.
Explore 2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-(phenylazo)-, disodium salt
Browse essential oils and aroma compounds.
Browse on iHerb →Affiliate disclosure: we may earn a small commission at no extra cost to you.
![4-Methyl-8-methylenetricyclo[3.3.1.(3,7)]decan-2-yl acetate (CAS 122760-85-4) — Woody Base Note Fragrance Ingredient](https://thegoodscents.company/wp-content/uploads/2026/04/4-methyl-8-methylenetricyclo-3-3-1-1-1-768x439.webp)
