Stemone

✦ Powerful green galbanum and violet leaf aroma chemical
✦ Ultra-low usage rate — extremely high impact
✦ Adds natural-feel leafy, vegetal sparkle to top notes
✦ Found in modern green florals, fougères, and masculine accords
✦ Vegan, cruelty-free, synthetic alternative to galbanum oil
✦ Used in iconic green and chypre style fine fragrances
✦ Excellent diffusion and lift in alcoholic perfumery

Stemone is a synthetic aroma chemical originally developed as a Givaudan captive specialty and now available more widely to the perfumery trade. It belongs to the family of high-impact green nitrile / ketone style materials that revolutionised modern green and galbanum accords from the late 20th century onward.

What makes Stemone special is its exceptional power and naturalness. A trace amount transforms a flat green note into a vivid, leafy, almost photographic galbanum and violet-leaf signature. It works where natural galbanum oil would be too resinous or costly, and gives perfumers a clean, reproducible green effect.

Rabibazaar supplies cosmetic-grade Stemone suitable for fine fragrance creation, attar and mukhallat blending, niche perfumery, functional fragrance, and modern cosmetic and home fragrance formulation.

SCENT DESCRIPTION : Stemone opens with a piercing fresh-cut green, leafy, and galbanum-like impression. There is a clear violet-leaf and tomato-leaf vegetal facet, with a slightly metallic, sappy edge. The effect is photographic — like crushing a green stem between the fingers. It feels cool, natural, and elegantly sharp.

NOTE POSITION : Top
FRAGRANCE FAMILY : Green · Galbanum · Vegetal
FACETS : Leafy · Galbanum · Violet leaf · Tomato leaf · Sappy
TENACITY : Low to Medium (2 to 4 hours on blotter)
SILLAGE : High — extremely diffusive even at trace dosage

CAS Number : 22457-23-4
Synonyms : Stemone (Givaudan trade name); green galbanum specialty
Purity % : ≥ 98% (verify with CoA)
Appearance : Colorless to pale yellow clear liquid
Odor Threshold : Extremely low — perceptible at ppm level
Molecular Weight: 143.2
Type : Synthetic

Fine Fragrance ★★★★★
Stemone is at its best in fine alcoholic perfumery. It powers green florals, chypres, fougères, and masculine colognes with a natural galbanum-violet-leaf sparkle.

Attar & Oriental Blending ★★★
Useful in trace amounts to add a fresh leafy lift to mukhallat top notes. Use sparingly to avoid clashing with heavy resins and oudh.

Functional Fragrance ★★★★
Performs well in shampoos, body washes, and reed diffusers where a clean green signature is desired. Strong diffusion makes it cost-effective.

Cosmetics ★★★
Suitable for leave-on and rinse-off products at very low dosage. Watch for any pale yellow tint at higher rates.

Home Fragrance ★★★★
Excellent in reed diffusers and room sprays for modern green compositions. In candles, top-note loss is normal but the impact remains.

EDP : 0.05% to 0.5% (rarely above 1%)
EDT : 0.05% to 0.5%
Body Lotion : 0.01% to 0.1%
Shampoo / Body Wash : 0.05% to 0.3%
Candle : 0.1% to 0.5%
Reed Diffuser : 0.1% to 0.5%
Soap : 0.05% to 0.2%

⚠️ Stemone is extremely powerful — overdose flattens compositions and creates a harsh, metallic green effect.
⚠️ IFRA 51st Amendment limits should be confirmed for the exact CAS at ifrafragrance.org before commercial use.
⚠️ Always verify current restrictions and category-specific limits with the supplier CoA and IFRA documentation.

Method 1 — Trace Top-Note Lift
Add 0.05% to 0.2% to the perfume concentrate to bring sharp, natural green diffusion to the opening.

Method 2 — Galbanum Reconstruction
Combine with galbanum oil, styrallyl acetate, and cis-3-hexenol to build a modern reconstructed galbanum accord.

Method 3 — Violet Leaf Accord
Pair with methyl heptin carbonate, ionones, and violet leaf absolute to create a luminous violet-leaf signature.

BEST PAIRINGS

Galbanum oil → reinforces resinous green base
Cis-3-hexenol → fresh cut grass and leaf realism
Triplal / Liffarome → leafy, melon-green amplification
Iso E Super → soft woody underlay and diffusion
Hedione → adds airy lift and naturalness
Cassis base → blackcurrant bud and green fruit synergy
Violet leaf absolute→ deepens vegetal violet character
Methyl pamplemousse → grapefruit-green citrus top

AVOID

Heavy gourmand and sweet oriental bases where green sharpness clashes
Overdose — creates a metallic, soapy off-note
Mixing too many high-impact greens together — they cancel each other out

In my hands Stemone is one of the most surgical green materials in the lab. A single drop in 100 g of base shifts the entire top note from generic to alive, and pulling back is always smarter than pushing forward. It is the difference between drawing a leaf and photographing one.

ADVANCED TIP
Build a 1% dilution of Stemone in DPG or perfumer's alcohol and dose from there — never the neat material. For a modern galbanum accord try 0.15% Stemone, 0.3% galbanum oil, 0.4% styrallyl acetate, 0.2% cis-3-hexenyl acetate, and 0.1% Triplal in the concentrate. This gives a vivid, photographic green opening that performs beautifully in alcoholic perfumery and reed diffusers.

Physical State : Liquid
Skin Safety : Use within IFRA limits; do not apply neat to skin
Eye Contact : Avoid — flush with water if exposed
Ingestion : Not for internal use
Ventilation : Handle in well-ventilated area
Storage : Cool, dark place away from heat and sunlight
Shelf Life : 24 months in sealed original container
Container : Amber glass or HDPE, tightly sealed
Flammability : Combustible liquid — keep away from open flame

Q: What does Stemone smell like?
A: Powerful green galbanum, violet leaf, and tomato leaf with a sharp leafy-vegetal lift.

Q: How much Stemone should I use?
A: Start at 0.05% to 0.2% in the concentrate. It is extremely powerful — use a 1% dilution to dose accurately.

Q: Is Stemone vegan and cruelty-free?
A: Yes. Stemone is a synthetic aroma chemical and contains no animal-derived material.

Q: Can I use Stemone in candles and reed diffusers?
A: Yes. It works well in reed diffusers and room sprays, and adds bright green opening to candles though some top-note loss in candles is normal.

Q: How does Stemone compare to natural galbanum oil?
A: Galbanum oil is resinous, complex, and base-leaning while Stemone is a sharp, clean, photographic green top note. Most modern green accords use both together for natural depth and diffusive lift.

Professional formulation workflow

Stemone should be evaluated in a controlled small batch before production. Confirm the supplied grade, active concentration and recommended application range from the current supplier documentation. Weigh accurately instead of measuring by drops, record every adjustment, and compare the modified trial against an unchanged control.

Compatibility and quality checks

Test the ingredient in the actual alcohol, oil, surfactant, emulsion or wax base intended for sale. Observe clarity, separation, color, odor and performance immediately after mixing and again after a suitable resting period. A material that looks stable in a concentrate can behave differently in the finished formulation.

Scale-up and safety

Convert percentages into exact batch weights and verify the final consumer-product concentration before scaling. Follow the latest applicable IFRA, cosmetic, chemical and supplier safety documentation for the intended category. Use appropriate protective equipment, ventilation and clearly labeled containers, and retain a sample from every approved batch for quality comparison.