CAS 56718-71-9
It is the intermediate of metoprolol
Appearance: white crystalline powder
Moisture: less than 0.5%
Melting point: 38-42℃
Assay (GC): more than 99%
Total impurities (GC): less than 1.0%
Each single impurity : less than 0.1%
Total impuritie by HPLC: less than 0.2%
Clarity: clear