Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Basic Information
Product Name: Cremophor EL
Alias: Castor oil polyoxyethylene ether; Ethoxylated castor oil; PEG-35 castor oil; Polyoxyl 35 castor oil
CAS No.: 61791-12-6
Molecular Formula: Not applicable (polymeric ethoxylate)
Molecular Weight: ~2500 g/mol
Classification: Nonionic surfactant; Solubilizer; Emulsifier; Pharmaceutical excipient
Physical & Chemical Properties
Appearance: Clear pale yellow viscous liquid
Odor: Faint characteristic odor
Density: 1.05 g/mL (20 °C)
Flash Point: 257 °C
Solubility: Soluble in water, ethanol; Slightly soluble in chloroform, ethyl acetate
HLB Value: 12–14
Viscosity: 600–750 mPa.s (25 °C)
pH: 5.0–7.0 (1 g/10 mL in H?O)
Stability: Light-sensitive; Store sealed at 2–8 °C
Specification Table
| Item | Specification | Unit | Remarks |
| Product Name | Cremophor EL | — | Ethoxylated castor oil |
| CAS No. | 61791-12-6 | — | Pharma grade |
| Appearance | Clear pale yellow viscous liquid | — | — |
| Purity | ≥98.0 | % | — |
| Water Content | ≤0.5 | % | — |
| Free Fatty Acids | ≤1.0 | % | — |
| Heavy Metals | ≤10 | ppm | — |
Main Uses
- Pharmaceutical Excipient: Solubilizer for poorly water-soluble drugs (e.g., intravenous formulations).
- Cosmetic Additive: Emulsifier and solubilizer in creams, lotions, and perfumes.
- Chemical Industry: Nonionic surfactant for emulsification, dispersion, and solubilization processes.
- Research Reagent: Used in cell-based drug delivery and membrane transport studies.
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