Product Data Sheet
Polyoxyl 40 stearate
Catalog No. A89420
Polyoxyl 40 stearate (PEG 40 stearate) functions as a nonionic surfactant, synthesized through the esterification of stearic acid with polyethylene glycol containing approximately 40 ethoxy units. It exhibits key biological activity in the formulation of pharmaceutical preparations and nanodrug carriers, facilitating emulsification and stabilization of active compounds. Applications include its use as a matrix component in solid lipid nanoparticles for the controlled release of encapsulated antifungal drugs, as well as serving as a base material for vaginal drug delivery systems, where it can be modified with acryloyl chloride to introduce polymerizable groups.
Chemical Information
| Catalog Num | A89420 |
|---|---|
| M. Wt | 2046.58 |
| Formula | C98H196O42 |
| Purity | >98% |
| Storage | at -20 °C 3 years (powder form); at -20 °C 6 months (Solution base) |
| CAS No. | 171286-89-8 |
| Synonyms | PEG 40 stearate |
| SMILES | O=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)CCCCCCCCCCCCCCCCC |
Biological Activity
| Description | Polyoxyl 40 stearate (PEG 40 stearate) functions as a nonionic surfactant, synthesized through the esterification of stearic acid with polyethylene glycol containing approximately 40 ethoxy units. It exhibits key biological activity in the formulation of pharmaceutical preparations and nanodrug carriers, facilitating emulsification and stabilization of active compounds. Applications include its use as a matrix component in solid lipid nanoparticles for the controlled release of encapsulated antifungal drugs, as well as serving as a base material for vaginal drug delivery systems, where it can be modified with acryloyl chloride to introduce polymerizable groups. |
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RETURN POLICY
Adooq’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.
Adooq’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.
SHIPPING AND STORAGE
Adooq products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Adooq Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Adooq products are stable under the recommended conditions.
Adooq products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Adooq Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Adooq products are stable under the recommended conditions.
