Suzhou Pharmaceutical Technology Co., Ltd. (China) supplies Magnesium Stearate CAS 557-04-0 for pharmaceutical B2B procurement — COA, MSDS, and technical documentation available on request.
> Product Overview
Magnesium Stearate CAS 557-04-0 is a fatty-acid magnesium salt supplied by Suzhou Pharmaceutical Technology Co., Ltd. for excipient, nutraceutical and industrial formulation sourcing. COA and MSDS are available for all orders, and COO can be arranged for >10 kg commercial bulk shipments.
Procurement teams use this page to align CAS identity, documentation, order scale and export regions before requesting a quotation. We support buyers in Brazil, Argentina, Colombia, Chile, Peru, Ecuador, Bolivia, Paraguay, Uruguay, Australia, New Zealand, Mexico and Canada.
> Applications and Technical Reference
Magnesium Stearate is commonly evaluated as a hydrophobic lubricant or flow-support excipient in powder blends, tablets, capsules and related dry formulations. Application suitability depends on grade, particle attributes, blend design, processing conditions and buyer-side qualification.
Veronica, Heng and Liew, AAPS PharmSciTech, 2024, 25, article 262, doi:10.1208/s12249-024-02980-x, reports a magnesium stearate fatty-acid composition and tablet-property study using n=2 MgSt material grades. We cite this as technical literature background only, not as a product performance claim.
> Technical Specifications
| Product Name | Magnesium Stearate CAS 557 |
|---|---|
| Structural Formula | |
| CAS Number | 557-04-0 |
| Molecular Formula | C36H70MgO4 |
| Molecular Weight | 591.2 g/mol |
| InChIKey | HQKMJHAJHXVSDF-UHFFFAOYSA-L |
| SMILES | CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Mg+2] |
| Appearance | White to off-white fine powder |
| Purity | Batch specification based on fatty-acid salt profile and buyer requirements |
| Storage | Store tightly closed in a cool, dry, ventilated area |
> Sourcing and Supply Scope
evaluation and pilot quantities are handled by the Suzhou technical team for sample evaluation, documentation review and early procurement planning. For >10 kg commercial bulk requirements, supply is scaled up at qualified manufacturing facilities according to confirmed specification and shipment plan.
> Quality and Documentation
Available documentation includes COA and MSDS for all order sizes. COO can be arranged for >10 kg commercial bulk shipments when required by import workflow. Additional buyer-specific declarations can be reviewed case by case before order confirmation.
> Packaging and Logistics
Packaging is selected according to order size, destination and material handling requirements. Export support covers South America, including Brazil, Argentina, Colombia, Chile, Peru, Ecuador, Bolivia, Paraguay and Uruguay, plus Australia, New Zealand, Mexico and Canada.
> Pricing and Lead Time
Pricing depends on quantity, specification, packaging, documentation and destination. Request a quote with target quantity, destination country, required documents and expected purchasing schedule so we can confirm availability and lead time.
> Related Products
> FAQ
Can Suzhou Pharmaceutical Technology Co., Ltd. supply Magnesium Stearate CAS 557-04-0?
Yes. Suzhou Pharmaceutical Technology Co., Ltd. supplies Magnesium Stearate CAS 557-04-0 for small-batch and commercial bulk sourcing requests.
What documents are available for Magnesium Stearate CAS 557-04-0?
COA and MSDS are available for all orders, and COO can be arranged for >10 kg commercial bulk shipments.
Can you ship Magnesium Stearate to South America?
Yes. We support shipments to Brazil, Argentina, Colombia, Chile, Peru, Ecuador, Bolivia, Paraguay and Uruguay.
What is the usual sourcing tier for Magnesium Stearate?
evaluation and pilot quantities are handled by the Suzhou technical team, while >10 kg scaled up at qualified manufacturing facilities.
Is Magnesium Stearate the same as Magnesium distearate?
Yes. Magnesium distearate, Magnesium octadecanoate and Stearic acid, magnesium salt are common aliases for Magnesium Stearate.
What structural identifiers are used for Magnesium Stearate?
PubChem CID 11177 lists InChIKey HQKMJHAJHXVSDF-UHFFFAOYSA-L and SMILES CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Mg+2].
How should Magnesium Stearate be stored?
Store it tightly closed in a cool, dry and ventilated area, away from incompatible materials and excess moisture.
What Australia, New Zealand, Mexico and Canada packaging can be arranged?
Packaging can be discussed by order size, including lab packs, cartons or drum-style export packing where suitable.
How can buyers request a quote?
Send the target quantity, destination country, documentation needs and intended application so our team can confirm availability and lead time.
What is the molecular formula of Magnesium Stearate?
The molecular formula is C36H70MgO4, with molecular weight about 591.2 g/mol for the PubChem listed compound.
> Request a Quote
Last reviewed: 2026-06-04. Request Magnesium Stearate CAS 557-04-0 pricing with quantity, destination, specification target and documentation needs.