CAS number: 557-04-0
Molecular formula: C36H70MgO4
molecular weight: 591.2544
Chemical structure:
Product name | Magnesium Stearate | |
Shelf life | Two years | |
Inspection Standard | USP32 | |
Items | Specifications | Results |
Characters | A very fine,light,white powder,odourless or with a very slight odour of steric acid | Conforms |
Identification A and B | Complies | Conforms |
Acidity or alkalinity | Complies | Conforms |
Chlorides | ≤0.1% | <0.1% |
Sulphates | ≤1.0% | <1.0% |
Lead | ≤10ppm | <10ppm |
Loss on drying | ≤6.0% | 4.4% |
Magnesium | 4.0~5.0% | 4.2% |
stearic acid composition stearic acid & palmitic acid composition | ≥40% ≥90% | 42% 98% |
Total bacterial count | ≤1000cfu/g | <1000cfu/g |
Total plate count | ≤1000cfu/g | Conforms |
Yeast&Mold | ≤500cfu/g | <500cfu/g |
Salmonella | Negative | Conforms |
E. coli | Negative | Conforms |
Conclusion | It conforms to USP32. |