Magnesium stearate

Model:	CP2020
Brand:	xinda
Origin:	Made In China
Category:	Chemicals / Pharmaceutical Chemicals
Label:	Magnesium stearate
Price:	US $2.7 / kg
Min. Order:	20 kg

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Product Description

Molecular formula: Mg[CH3(CH2)16COO]2

CAS NO.: 557-04-0

Chemical structural formula:

Main uses

This product is mainly used as tablet and capsule lubricant or anti-viscosity agent, the general concentration is 0.25-2.0%, because of its hydrophobicity, it can delay the dissolution rate of solid preparation drugs, so it requires the use of concentration as low as possible, and should avoid the use of alkaline incompatibility with drugs.

Quality standard

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