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Magnesium stearate

ALDRICH/415057 - technical grade

Synonym: Stearic acid magnesium salt

CAS Number: 557-04-0
Empirical Formula (Hill Notation): C36H70MgO4
Molecular Weight: 591.24
EC Number: 209-150-3
MDL Number: MFCD00036391
Linear Formula: [CH3(CH2)16CO2]2Mg
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-415057-25G 25 g
 $47.50
1/EA		 Add To Favorites
45-415057-1KG 1 kg
 $78.10
1/EA		 Add To Favorites

 

composition palmitate salt, 25%
  stearate salt, 65%
form powder
grade technical grade
InChI 1S/2C18H36O2.Mg/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2
InChI key HQKMJHAJHXVSDF-UHFFFAOYSA-L
mp 200 °C (lit.)
SMILES string CCCCCCCCCCCCCCCCCC(=O)O[Mg]OC(=O)CCCCCCCCCCCCCCCCC
Application: Magnesium stearate may be used as excipient in the formulations of diclofenac sodium tablets. It may be used for the preparation of tramadol HCl matrix tablets.
General description: Magnesium stearate (Mg-St) is the magnesium salt of stearic acid. Its anhydrate, dihydrate and trihydrate forms have been prepared. The tabletting of the blends of magnesium stearate and lactose granules has been described. The influence of mixing time on hardness, disintegration time and ejection force on the compressed tablets was examined. Mg-St is widely used lubricant in pharmaceutical industry. It also plays a role in delaying the process of dissolution. Its detection in tablets by laser-induced breakdown spectroscopy has been proposed.

Magnesium stearate, the salt of stearic acid, is widely employed as an inactive component in making pharmaceutical tablets.
Packaging: 1 kg in poly drum
Packaging: 25 g in poly bottle
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26
RIDADR NONH for all modes of transport
WGK Germany nwg
Flash Point(F) Not applicable
Flash Point(C) Not applicable
mp 200 °C (lit.)
UNSPSC 12352100

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