China (Mainland) 
product name:betamethasone
cas no.:378-44-9
appearance: white or almost white, odorless crystalline powder
melting point:235-237 ºc
identification: ir,uv,hplc positive
specific rotation: +118° - +126°
loss on drying: not more than 0.55%
residue on ignition: not more than 0.1%
relative substance: total not more than 1.0%
single not more than 0.5%
assay: 97%-103%
specificaiton: usp/bp/ep/cp
a glucocorticoid given orally, parenterally, by local injection, by inhalation, or applied topically in the management of various disorders in which corticosteroids are indicated. its lack of mineralocorticoid properties makes betamethasone particularly suitable for treating cerebral edema and congenital adrenal hyperplasia.
hormone class medicine. mainly used for anti-inflammatory and anti-allergy. apply to rheumatoid arthritis and various skin diseases. the role of betamethasone with dexamethasone, the anti-inflammatory activity than dexamethasone, triamcinolone, hydrocortisone strong, less side effects.