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Magnesium stearate is commonly added to many foods, pharmaceuticals, and cosmetics. In medications and vitamins, its primary purpose is to act as a lubricant. 

Molecular formula: Mg[CH3(CH2)16COO]2

CAS NO.: 557-04-0

E Number: E470b

 

 

Applications

Magnesium stearate is commonly added to many foods, pharmaceuticals, and cosmetics. In medications and vitamins, its primary purpose is to act as a lubricant. 

 

Testing item  

Food grade

appearance 

white bulk powder

magnesium oxide content,w/%

6.8-8.3  

loss on drying,w/%

≤4.0 

lead content,Pb/(mg/kg)

≤5.00   

 bacteria, cfu/g 

≤1000

 mould, cfu/g

≤100

escherichia coli

not detectable

 

Testing item

Testing standard

Specification

USP35-NF30

BP2013

appearance

white fine powder

white fine powder

identification

meet the specification

meet the specification

solubility

/

meet the specification

magnesium content,  %

4.0-5.0

4.0-5.0

PH value

meet the specification

meet the specification

chloride, %

≤0.1

≤0.1

sulfate, %

≤1.0

≤1.0

loss on drying, %

≤6.0

≤6.0

lead, ppm

≤10

≤10

nickel, ppm

≤5

≤5

cadmium, ppm

≤3

≤3

stearic acid content, %

≥40.0

≥40.0

stearic acid&palmitic acid content, %

≥90.0

≥90.0

bacteria, cfu/g

≤1000

≤1000

mould, cfu/g

≤100

≤100

pathogenic bacterium

not detectable

not detectable

 

Product Name: Magnesium stearate Other Name: Octadecanoic acid,magnesium salt (2:1);Magnesium stearate;Stearic acid,magnesium salt;Octadecanoic acid,magnesium salt;Dibasic magnesium stearate;Magnesium distearate;SM;Petrac MG 20NF;SM 1000;Magnesium octadecanoate;Daiwax M;Pharma;SM-P;NS-M;NS-M (salt);Synpro Magnesium Stearate 90;Synpro 90;NP 1500;Magnesium stearic acid;EM 100;EM 100 (salt);EM 144;EM 112;EM 612;Nissan Electol MM 2;HyQual;Electol MM 2;Mg-St;Daiwax SMO;Palmstar 325BP/EP;SPX 100F;M 5GN;Magnesium Stearate G;Aurabrite MA 76;Parteck LUB-MST;PETS 120P;AFCO-Chem MGS;Kemilub EM-F-V;JPM 100;Liga MF 2V;SMO;VE;SM-PG;MGS;Songstab SM 310;BS 5818;SAK-MS-P;Parteck LUB;Ligastar MG 700;SM 520;Magnesium stearate GR;S 0238;Nissan Elector MM-2;Ligamed MF-2-V;Magnesium Stearate GP;magnesium stearate;Ligamed;SM 310;E 470B;IADMGSTCM 700;NJ 029;YZM 32C;YZM 75C;Ligamed MF 2V;Hyqual 5712;212132-26-8
CAS No.: 557-04-0 Molecular Formula: C18H36O2.1/2Mg
InChIKeys: InChIKey=DKXULEFCEORBJK-UHFFFAOYSA-N Molecular Weight: 632.31900
Exact Mass: 630.45700 EC Number: 209-150-3
UNII: 70097M6I30 ICSC Number: 1403
DSSTox ID: DTXSID2027208 Color/Form: LUMPS|Fine, bulky, white powder|Soft, white, light powder
HScode: 29157030 Categories: Bulk Drug Intermediates

PSA: 52.60000 XLogP3: 12.50830
Appearance: White powder Density: 3″>1.028 g/cm3
Melting Point: 88 °C Boiling Point: 359.4ºC at 760mmHg
Flash Point: 162.4ºC Refractive Index: 1.45 (25ºC)
Water Solubility: H2O: Insoluble Storage Conditions: Store at RT.
Toxicity: 2000 mg/kg”>LD50 orally in Rabbit: > 2000 mg/kg Odor: Odorless|Faint, characteristic odor
Taste: Tasteless Experimental Properties: Decomposed by dilute acids
Physical Dangers: Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Pictogram(s) No symbol.
Signal word

No signal word

Hazard statement(s)

none

Precautionary statement(s)
Prevention

none

Response

none

Storage

none

Disposal

none

Other hazards which do not result in classification

no data available

Precautions for safe handling

NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.