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Calcium beta-hydroxy-beta-methylbutyrate
Name:Calcium beta-hydroxy-beta-methylbutyrate 
CAS NO:135236-72-5 
MF:C10H18CaO6 

Appearence:White crystalline powder 
The detailed specifications are as below:
Specification Limits
Appearance  White crystalline powder
Total content ≥99.%
HMB Assay  ≥78.0%  
Ca2+    Assay 13.5~15.5%
Loss on drying ≤7.0%
Residue on ignition ≤0.20%
Heavy metals ≤10PPM
As ≤1PPM
Total plate count ≤1000cfu/g
Yeast and mould     ≤100cfu/g
E.Coli negative/g  
Salmonella negative/g