Description

(-)-Rose Oxide CAS NO 3033-23-6 is a high-purity, optically active isomer of the key fragrance compound rose oxide, prized for its superior olfactory profile. This specific enantiomer delivers a more natural, fresh, and dewy green-rosy scent compared to its racemic or opposite enantiomer forms, making it essential for creating sophisticated and authentic fragrance compositions. It is a critical ingredient for perfumers and flavorists in the fragrance, cosmetic, and fine flavoring industries seeking to impart a premium, natural rose character.

Application

• Fine Fragrance Formulation: A cornerstone material in high-end perfumery for creating natural rose, geranium, and muguet (lily of the valley) accords in perfumes, eaux de toilette, and colognes.
• Cosmetic & Personal Care: Used to scent a wide range of products including lotions, creams, soaps, shampoos, and body washes, contributing a fresh floral bouquet.
• Flavor & Fragrance (F&F) Synergy: Employed in flavor compositions for candies, beverages, and dairy products where a subtle floral note is desired, though usage levels are strictly controlled.
• Household & Air Care Products: Incorporated into premium detergents, fabric softeners, and air fresheners to provide a long-lasting, pleasant floral ambiance.
• Aromatherapy & Wellness: Valued in niche applications for creating calming and uplifting aromatic blends.

Basic Information

Product Name	(-)-Rose Oxide
CAS No.	3033-23-6
Molecular Formula	C10H18O
Molecular Weight	154.25 g/mol
Synonyms	(-)-Tetrahydro-4-methyl-2-(2-methyl-1-propen-1-yl)pyran; L(-)-Rose Oxide; (2R,4R)-4-Methyl-2-(2-methylprop-1-en-1-yl)tetrahydro-2H-pyran; (4R)-4-Methyl-2-[(1R)-2-methyl-1-propen-1-yl]tetrahydro-2H-pyran; levo-Rose Oxide; (2R-trans)-Tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2H-pyran; Rose Oxide L; (-)-cis-Rose Oxide
EINECS	221-217-7

Quality Control

Our (-)-Rose Oxide is produced and tested to meet the exacting standards of the fragrance and flavor industry. Each batch undergoes rigorous analytical testing including chiral purity (enantiomeric excess), chemical assay, and organoleptic evaluation to ensure consistent olfactory quality and chemical identity. Certificates of Analysis (COA) detailing purity, specific rotation, and chromatographic profile are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Due to its highly volatile nature, keep containers tightly sealed when not in use to prevent evaporation and maintain purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Odor	Characteristic fresh, green rosy odor
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Enantiomeric Purity (Chiral GC)	≥ 99.0% (-)-isomer
Specific Rotation [α]20/D	-30° to -40° (c=1 in ethanol)
Refractive Index n20/D	1.455 - 1.465
Relative Density (20/20°C)	0.870 - 0.880

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.