Rose Oxide
Synthetic Ingredient for Perfumery
Rose Oxide is a synthetic compound used in creating rose and geranium scents. It emits a weak, floral, and rosy fragrance with a metallic undertone. Its odor profile includes hard green and iron-like notes, with a slightly medicinal and dusty aspect resembling dried blood.
🏭 Manufacturer — Bedoukian Research Inc.
📂 CAS N° — 16409-43-1
⚖️ MW — 154.24
📝 Odor Type — Floral, Rosy (metallic)
📈 Odor Strength — Weak
👃🏼 Odor Profile — Decreasing: Hard green, very metallic note with an iron aspect. Slightly medicinal with a “dusty” but more like iron note. it has partially the smell of dried blood (hence, iron) on the hands. Vegetable green, pea-like (Fulvio Ciccolo, Scentspiracy — 2022).
The official description for BRI: A rose, geranium odor with an earthy undertone.👅 Flavor Profile — Green, rosy, woody.
👅 Flavor Use — Green, rosy notes for a variety of fruits and berries, especially raspberry and blackberry. Use level (0,1 — 10 PPM)
⚗️ Use — Used in synthetic rose and geranium oils.
📝 Note — The odor of the Iaevo-isomer is sweeter, yet somewhat green. The odor of the dextro- isomer is more warm-spicy, sometimes gassy, and more often just herbaceous. Since Rose oxide is synthesized in quite different ways, the commercial products may contain by-products in various proportions.
What is Rose Oxide?
The name “Rose oxide” was originally applied to a formerly unknown material, isolated in 1959 from Bulgarian Rose oil which contained at least two stereo-isomerides of this formula.
The first synthetic ‘“Rose oxide” was a mixture of several isomers, and today many years later, a pure single isomer is still a rare material!
The preferred isomer of the molecule would be Cis-2-(2-Methyl-l-Propenyl)-4-methyltetrahydropyran.
Some differences between the Laevo and the Dextro isomers.
The dextro-cis and the dextro-trans forms are exclusively synthetic.
The laevo-cis and the Iaevo-trans forms may be either synthetic or natural.
BRI DATA 💾
BRI Product Number: 480
BRI Product Name: Rose Oxide BRI
CAS Number: 16409-43-1
FEMA Number: 3236
EU FLAVIS Number: 13.037
Molecular Weight: 154.24
Molecular Formula: C10H18O
Sources and informations
Fulvio Ciccolo, Scentspiracy 2022
Bedoukian Research Inc
Odor Sample from Bedoukian
Perfume and flavor chemicals, S. Arctander