Magnesium Stearate CAS 557-04-0
Product Introduction: White fine soft bright powder or lump. Industrial product contains a small amount of oleic acid and 7% magnesium oxide, odourless and tasteless. Slightly soluble in water, soluble in hot ethanol solution.
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CAS No.: 557-04-0
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Molecular formula: C36H70MgO4
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Samples: Free samples under 100g
Specifications:
| Item | Specification |
| Name | Magnesium stearate |
| Purity | ≥99% |
| CAS | 557-04-0 |
| EINECS | 209-150-3 |
| Density | 1.028g/cm3 |
| Melting point | 200 °C (lit.) |
| Appearance | White powder |
| Odour | Odorless |
Application:
1). Lubricant: Reduces friction between powder particles and tablet machine components (e.g., punches and dies), improving tablet compression efficiency and preventing adhesion during manufacturing.
2). Flow Aid: Enhances the flow properties of powder blends, ensuring uniform distribution of active ingredients in tablets and capsules.
3). Anti-Adherent: Prevents powder sticking to equipment surfaces, minimizing production issues like capping or lamination in tablet compression.
4). Binder/Disintegrant Adjuster: In some formulations, it modulates the release rate of active pharmaceutical ingredients (APIs) by influencing tablet hardness and disintegration time, though its role is primarily mechanical rather than chemical.
