Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Profile
- Full IUPAC Name: 11-Oxahexadecan-16-olide
- Aliases: Musk 781, 11-Oxa-16-hexadecanolide, Oxalide 16
- CAS Number: 3391-83-1
- EINECS: 222-226-7
- Molecular Formula: C15H28O3
- Molecular Weight: 256.38
- Chemical Classification: Macrocyclic ether lactone synthetic musk, daily fragrance raw material, cosmetic aroma additive
- Core Advantages
16-membered macrocyclic lactone musk with ether linkage, featuring soft, creamy natural musk scent with excellent long-lasting retention. Superior heat resistance and pH stability, compatible with floral, woody, amber and oriental fragrance bases. Non-irritating to skin, widely used as eco-friendly substitute for animal musk in perfumes, personal care, laundry and candle aromas.
2. Physical & Chemical Properties
2.1 Physical Index
- Appearance: Colorless transparent oily liquid
- Odor: Elegant mild musk note with subtle creamy sweet undertones, strong fixative property
- Solubility: Insoluble in water; miscible with ethanol, dipropylene glycol, cosmetic oils, acetone and all perfume bases
- Boiling Point: 140–145 °C (0.5 mmHg)
- Density (20℃): 0.942–0.948 g/cm3
- Refractive Index nD20: 1.458–1.464
- Freezing Point: ≤ -10 ℃
- Hygroscopy: Non-hygroscopic, low volatility under ambient temperature
2.2 Chemical Properties
- Structure feature: 16-member macrocycle containing one ether bond and one lactone ester group
- Lactone stability: Resists hydrolysis under neutral & weak alkaline conditions; only decomposes with long-term heating in concentrated strong acid/alkali
- Thermal performance: No discoloration or fragrance degradation below 120 ℃, suitable for hot processing of soaps and detergents
- Photostability: Good anti-yellowing performance under UV exposure, ideal for transparent perfumes and skincare products
- pH tolerance: Stable within pH 5–9, applicable to alkaline washing formulations
- Compatibility: Fully miscible with natural essential oils, synthetic fragrances and cosmetic emollients; incompatible with concentrated strong oxidants and mineral acids
3. Main Application Fields
3.1 High-End Perfume Formulation (Core Usage)
- Core musk fixative for perfume, cologne and solid perfume; enhances fragrance depth and lasting power
- Modifier for floral, woody and oriental accords to add soft natural musk character
3.2 Cosmetic & Personal Care Fragrance
Scent additive for facial cream, body lotion, perfume oil, shampoo, shower gel and body mist, mild formula with low skin irritation
3.3 Household Fragrance Raw Material
Fragrance component for laundry detergent, fabric softener, toilet soap, scented candles and aromatherapy diffuser oils, stable in alkaline washing systems
3.4 Fragrance Lab Reference Standard
Macrocyclic musk reference substance for synthetic musk research and aroma evaluation testing
4. Quality Specification Table
| Test Item | Standard Index |
| CAS No. | 3391-83-1 |
| Molecular Formula | C15H28O3 |
| Molecular Weight | 256.38 |
| Appearance | Colorless clear oily liquid |
| GC Purity | Fragrance Grade ≥98.0% |
| Water Content (KF) | ≤0.10% |
| Acid Value | ≤1.0 mgKOH/g |
| Heavy Metals (Pb) | ≤10 ppm |
| Residue on Evaporation | ≤0.05% |
| Bulk Package | 200L plastic-lined iron drum |
| Sample Package | 1L / 5L amber sealed glass bottle |
| Storage Requirements | Hermetic amber sealed cool warehouse ≤25℃; avoid direct sunlight, high temperature and oxidants |
| Transportation Rule | Fragrance lactone liquid; light-proof sealed packaging required during transit |
| Shelf Life | 24 months under intact sealed packaging |
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