Molekula

Magnesium stearate

SKU 17736814 CAS 557-04-0 [CH3(CH2)16CO2]2Mg MW 591.24 In stock

Magnesium stearate is a metallic soap used as a lubricant in pharmaceutical and cosmetic manufacturing. It is a white, odorless powder that improves flow properties in tablet and powder formulations. CAS: 557-04-0, Molecular Formula: [CH3(CH2)16CO2]2Mg, Molecular Weight: 591.24 g/mol, Storage: Ambient, Signal Word: Warning. Molekula supplies Magnesium stearate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch Download specification

Overview

Pricing & pack sizes

Pack sizes & pricing

£ GBP € EUR $ USD

100 g — €44.30 per pack
500 g — €116.60 per pack

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Specifications

Download PDF

Property	Value
Appearance	Light fine powder
Water	≤4.0%
Mesh	(1500) ≥98.0%
Free acid	≤4.0%
Assay(Mg)	4.0 - 5.0%

Storage & handling

Property	Value
Storage Temperature	Ambient
Shelf Life	24 months
Acidity	Neutral

Identification

Property	Value
SKU	17736814
CAS Number	557-04-0
Molecular Formula	[CH3(CH2)16CO2]2Mg
Molecular Weight	591.24
SMILES	CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Mg+2]
REACH Code	Y113
TSCA Listed	Yes
HTS Code	29157001
Tariff Code	2915705090

Safety & GHS

Warning

Health Hazard GHS07

Hazard statements

H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation

Precautionary statements

P261 Avoid breathing dust/fume/gas/mist/vapours/spray
P280 Wear protective gloves/protective clothing/eye protection/face protection
P302+350 IF ON SKIN: Gently wash with soap and water
P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
P308+313 IF exposed or concerned: Get medical advice/attention

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Safety Data Sheets (SDS)

Available in PT, RU, IT, FR, ES, DE, EN.

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is magnesium stearate used for?

Magnesium stearate is commonly used as a lubricant in pharmaceutical manufacturing and as a release agent in industrial processes.

What is the chemical formula and molecular weight of magnesium stearate?

The formula is [CH3(CH2)16CO2]2Mg with a molecular weight of 591.24 g/mol.

How should magnesium stearate be stored?

Store at ambient temperature, protected from moisture and direct sunlight.

What grade of magnesium stearate does Molekula supply?

Molekula supplies pharmaceutical-grade magnesium stearate suitable for use in drug formulations.

Can Molekula supply magnesium stearate in bulk?

Yes, Molekula can supply magnesium stearate in bulk quantities; please contact our sales team for pricing and availability.

What documentation comes with a magnesium stearate order?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) upon request.

Ready to order or need a custom pack?

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