2-Propanol, 1,1′,1′,1′-(1,2-ethanediyldinitrilo)tetrakis- (CAS 102-60-3) — Citrus Non-aromatic Note Fragrance Ingredient
2-Propanol, 1,1',1',1'-(1,2-ethanediyldinitrilo)tetrakis-
CAS 102-60-3
What Is 2-Propanol, 1,1',1',1'-(1,2-ethanediyldinitrilo)tetrakis-?
This synthetic compound is a specialized ingredient used primarily in industrial fragrance applications and chemical synthesis. Consumers rarely encounter it directly. As a chelating agent, it plays a behind-the-scenes role in stabilizing certain fragrance formulations rather than contributing directly to scent profiles.
Safety Profile
PROFESSIONAL USEWhat Does 2-Propanol, 1,1',1',1'-(1,2-ethanediyldinitrilo)tetrakis- Smell Like?
This compound is odorless in pure form, functioning as a chemical stabilizer rather than an aromatic material. Its primary role in fragrance applications is to chelate metal ions that might otherwise catalyze oxidation reactions in fragrance oils. The molecule exhibits no discernible top, middle, or base notes, nor does it contribute to dry-down characteristics in finished perfumes.
Chemistry, Properties & Perfumer Guide
The Chemistry
This tetrapropanolamine derivative belongs to the polyol amine class, featuring four isopropanol groups attached to an ethylenediamine core. The molecule acts as a tetradentate ligand, forming stable complexes with transition metals. Industrial synthesis typically involves the reaction of ethylenediamine with excess propylene oxide under controlled conditions. The compound’s chelating properties make it valuable for stabilizing oxidation-prone fragrance components.
Physical & Chemical Properties
| Appearance | Colorless viscous liquid |
|---|---|
| Function | Chelating agent |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Industrial Stabilizer | 0.1-0.5% | Up to 1% | Metal ion sequestration |
Classic Accords
Tip: Use as a stabilizer in metal-sensitive formulations at minimal effective concentrations.
Alternatives & Comparisons
Ethylenediaminetetraacetic acid offers stronger chelation for more demanding stabilization requirements.
Natural chelator suitable for cleaner-label formulations where mild stabilization suffices.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not regulated by IFRA as it is not an aromatic material.
GHS Classification
RIFM Assessment
Not evaluated by RIFM as it is not a fragrance material.
Sustainability
As a synthetic compound, this material is produced through petrochemical processes. While effective at low concentrations, its environmental impact is mitigated through controlled industrial handling. Green chemistry alternatives are being developed for similar chelating functions.
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