Fig. 1 · Structure
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Magnesium stearate
Pharmaceutical Excipient
Magnesium stearate is an effective pharmaceutical excipient primarily utilized as a lubricant in tablet formulations. While it enhances the flow properties and processing of powders, it may adversely affect the bonding between particles. This inactive ingredient is crucial for improving the stability and solubility of pharmaceutical preparations, thereby influencing the absorption, distribution, metabolism, and elimination (ADME) of co-administered drugs. Its role as an excipient is vital in ensuring optimal performance and efficacy in drug delivery systems.
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Specifications
| Manufacturer | Adooq Bioscience |
|---|---|
| CAS Number | 557-04-0 |
| Applications | Pharmaceutical Excipient |
| Formula | C18H36O2·1/2Mg |
| Molecular Weight | 296.64 |
| Synonyms | Stearic Acid Magnesium(II) Salt |
| SMILES | O=C(CCCCCCCCCCCCCCCCC)O.[Mg] |
Storage & Solubility
In Vitro Solubility
Reported Solubility
No reported solubility data are available for this product.
Preparing Stock Solutions
| Concentration | |
|---|---|
Values use four significant digits. Prepare to the final solution volume; this is not the volume of solvent to add.
Stock preparation is unavailable for this product molecular weight.
Calculated stock concentrations do not establish solvent solubility. Refer to the reported solubility data for experimental guidance.
Storage
Store powder at -20°C, keep desiccated.
In powder form, the chemical is stable for 36 months.
In solution, store at -20°C and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.