C.I. Natural green 3 (CAS 8049-84-1) — Citrus Visual only Note Fragrance Ingredient
C.I. Natural green 3
CAS 8049-84-1
What Is C.I. Natural green 3?
C.I. Natural Green 3 is a synthetic dye used in cosmetics and personal care products to impart a green hue. It is commonly found in colored perfumes, soaps, and bath products where visual appeal is important. While primarily a colorant, its presence can influence consumer perception of fragrance freshness and naturalness through visual association with green botanicals.
Safety Profile
USE WITH AWARENESSWhat Does C.I. Natural green 3 Smell Like?
As a colorant rather than a fragrance ingredient, C.I. Natural Green 3 has no inherent odor. Its visual presence may create olfactory expectations through psychological association – the green hue suggests fresh, grassy, or herbal notes even when none are present. This chromatic-olfactory illusion is leveraged in fragrance marketing to enhance perceived freshness without altering scent chemistry.
Chemistry, Properties & Perfumer Guide
The Chemistry
C.I. Natural Green 3 is a synthetic colorant belonging to the chlorin class of dyes. While its exact molecular structure is proprietary, it shares characteristics with chlorophyll derivatives that produce stable green hues. The compound is synthesized through controlled oxidation processes to achieve consistent batch-to-batch coloration. Unlike natural chlorophyll, it maintains color stability across a wide pH range.
Physical & Chemical Properties
| Color | Green |
|---|---|
| Form | Powder or liquid solution |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Colored Fragrances | 0.01-0.1% | Up to 0.5% | For visual enhancement |
| Bath Products | 0.05-0.2% | Up to 1% | Water-soluble formulations |
Classic Accords
Tip: Dissolve completely in carrier before adding to fragrance bases to prevent uneven coloration.
Alternatives & Comparisons
Natural-derived green colorant with similar hue but less stability in acidic formulations.
Synthetic alternative with brighter green tone and higher lightfastness.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not restricted by IFRA as it is not a fragrance material.
RIFM Assessment
Not evaluated by RIFM as it falls outside fragrance material scope.
Sustainability
As a synthetic dye, C.I. Natural Green 3 offers consistent production with minimal batch variation compared to plant-derived colorants. Its manufacturing process avoids agricultural land use but requires chemical synthesis. The environmental impact depends on specific production methods and waste management protocols at manufacturing facilities.
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References
- Cosmetic Ingredient Review (CIR) Expert Panel. (2019). Safety Assessment of Green Colorants as Used in Cosmetics. CIR Report
- European Commission Cosmetic Ingredient Database (CosIng) CosIng Entry
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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