1. Molecular formula:C₁₂H₂₂CaO₁₄H₂O
2. Properties white crytalline particle or powder, odourless and tasteless, stable in the air.
3. Uses：used as Ca strengthener and nutrient that is helpful to the formation of bone and maintain the normal excitability of nervus and muscles. Also used as buffer, curing agent and chelator.
4. Quality standard: Conform to the standard of Chinese, British and American Pharmacopeias.

Quality standard
Index name: National Standard GB15571-1995
Assay (dry basis) % 99~102
Chloride % ≤0.05
Sulfate % ≤0.05
Magnesium salt and alkali metal salt % ≤0.4
Reduzate negative
Moisture % ≤0.5
pH 6~8