1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-, trisodium salt (CAS 1934-21-0) — Citrus N/A Note Fragrance Ingredient
1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-, trisodium salt
CAS 1934-21-0
What Is 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-, trisodium salt?
This synthetic compound is primarily used as a colorant in various industrial and consumer products, including textiles and coatings. It is not commonly encountered as a fragrance ingredient in perfumery or personal care. Due to its chemical structure, this substance is valued for its strong dye properties rather than olfactory characteristics.
Safety Profile
PROFESSIONAL USEWhat Does 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-, trisodium salt Smell Like?
This compound does not possess significant odor characteristics suitable for perfumery applications. Its primary function is as a synthetic dye, with no notable olfactory profile documented in fragrance literature.
Chemistry, Properties & Perfumer Guide
The Chemistry
1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-, trisodium salt is a synthetic azo dye compound. It features a complex structure with multiple sulfonate groups attached to aromatic rings, connected through a pyrazole core. The presence of azo bonds (-N=N-) is characteristic of many synthetic dyes. This compound is synthesized through diazotization and coupling reactions typical of azo dye chemistry.
Physical & Chemical Properties
| Color/Form | Not documented |
|---|---|
| Solubility | Water-soluble (expected) |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Industrial Dyes | Not applicable | Not applicable | Colorant application only |
Classic Accords
Tip: Not recommended for fragrance applications.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not evaluated by IFRA – not a fragrance material.
RIFM Assessment
Not evaluated by RIFM – not a fragrance material.
Sustainability
As an industrial synthetic dye, this compound’s environmental impact relates primarily to manufacturing processes and wastewater treatment in textile applications. Proper handling is required to prevent aquatic contamination due to its persistent chemical structure.
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