Products name:Calcium Levofolinate
Another name:Levoleucovorin calcium
Structural formula: C20H21CaN7O7
Molecular weight: 51150
CAS NO: 80433-71-2 
Appearance: White crystalline powder
Use: Calcium levofolinate is used to diminish the toxicity and counteract the action of folic acid antagonists such as methotrexate in cytotoxic therapy