Methyl Undecylenate
Manufactured by Nova Industries
Nova Industries manufactures high-purity Methyl Undecylenate (Methyl 10-Undecenoate), an unsaturated ester derived from the thermal cracking of Methyl Ricinoleate.
This C-12 ester serves as a vital bridge between industrial chemistry and fine fragrance. Due to its superior fractional distillation, our grade offers a cleaner odor profile suitable for perfumery, while maintaining the chemical reactivity required for pharmaceutical and polymer synthesis.
1. Production Process
Methyl Undecylenate is produced via the high-temperature pyrolysis of Methyl Ricinoleate (the methyl ester of Castor Oil).
- The Process: Methyl Ricinoleate is heated to $>500^\circ C$, causing the molecule to cleave.
- The Equation:$$Methyl \ Ricinoleate \xrightarrow{\Delta} Heptaldehyde \ (C_7) + Methyl \ Undecylenate \ (C_{11} \ Ester)$$
- Purification: The reaction mixture yields Heptaldehyde and Methyl Undecylenate, which are separated and purified via Fractional Distillation to achieve purities exceeding 98%.
2. Key Industrial Applications
Fragrance & Flavors
- Odor Profile: A medium-strength odor described as “Earthy, Fatty, Rose, Floral” with fungal nuances.
- Perfumery: Used as a modifier in floral accords (Rose, Geranium) to add a natural “waxy petal” effect. Its substantivity (24 hours) makes it a useful fixative for top-to-middle notes.
- Masking Agent: Effective in anti-odor formulations for covering chemical base notes.
Chemical Synthesis
- Precursor: It is the primary intermediate for the production of Undecylenic Acid via hydrolysis. Hydrolyzing the ester yields a purer acid than direct oil pyrolysis.
- Nylon-11: A feedstock for synthesizing 11-Aminoundecanoic acid, the monomer for Nylon-11 engineering plastics.
Cosmetics & Pharma
- Antifungal: Like its acid form, the methyl ester exhibits antifungal properties and is used in foot care formulations and deodorants.
3. Technical Specifications (TDS)
Nova Industries provides a high-purity ester with strict control over acid value and color.
| Parameter | Specification | Test Method |
| Product Name | Methyl Undecylenate | — |
| Synonyms | Methyl 10-Undecenoate | — |
| CAS Number | 5760-50-9 | — |
| Formula | $C_{12}H_{22}O_2$ | — |
| Molecular Weight | 198.30 g/mol | — |
| Appearance | Colorless to Pale Yellow Clear Liquid | Visual |
| Assay (Purity) | 98.0% – 100.0% | GC |
| Odor | Earthy, Rose, Fatty, Floral | Organoleptic |
| Specific Gravity @ 25°C | 0.879 – 0.889 | ASTM D4052 |
| Refractive Index | 1.442 – 1.446 | — |
| Acid Value | 1.0 mg KOH/g Max | ISO 660 |
| Boiling Point | 247°C – 248°C | — |
| Melting Point | -28°C | — |
| Flash Point | $> 93°C$ ($> 200°F$) | Closed Cup |
| Optical Rotation | -2.0° to +2.0° | — |
| Shelf Life | 24 Months | — |
Packaging & Storage
- Packaging: 180 Kg Epoxy-Lined Steel Drums / 200 Kg HDPE Drums / ISO Tanks.
- Storage: Store in a cool, dry, well-ventilated area. Keep containers tightly closed to maintain the floral odor profile and prevent oxidation.
For Fragrance & Synthesis Inquiries:
Nova Industries
Website: https://novaind.in/