Magnesium stearate

Description

CAS: 557-04-0 | C36H70MgO4 | 591.257 g/mol

Magnesium stearate is involved in the production of medical tablets, capsules, powders and polymer formulation. It is also used as a lubricant for tablets, anti-adherent, in dry coating and as a binding agent. It is an important ingredient in baby formulas. Further, it is used in the hydrogenation process. In addition to this, it is used to bind the sugar in hard candies like mints.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Solubility
Slightly soluble in benzene. Insoluble in water, alcohol and ether.

Notes
Incompatible with strong oxidizing agents, acids and alkalis.

Specifications

Chemical Identifiers

• CAS: 557-04-0
• Molecular Formula: C36H70MgO4
• Molecular Weight (g/mol): 591.257
• MDL Number: MFCD00036391
• InChI Key: HQKMJHAJHXVSDF-UHFFFAOYSA-L
• Synonym: magnesium stearate, magnesium octadecanoate, magnesium distearate, synpro 90, octadecanoic acid, magnesium salt, dibasic magnesium stearate, petrac mg 20nf, ns-m salt, sm-p, stearic acid, magnesium salt
• PubChem CID: 11177
• ChEBI: CHEBI:9254
• IUPAC Name: magnesium;octadecanoate
• SMILES: CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Mg+2]

• Melting Point: 148°C to 152°C
• Quantity: 250 g
• Solubility Information: Slightly soluble in benzene. Insoluble in water,alcohol and ether.
• Formula Weight: 591.27
• Chemical Name or Material: Magnesium stearate

Safety and Handling

EINECSNumber	209-150-3
RTECSNumber	WI4390000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only