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Doxercalciferol 

IUPAC name:(1S,3R,5Z,7E,22E)-9,10-Secoergosta-5,7,10,22-tetraene-1,3-diol

CAS No.:54573-75-0

Other Name:1-Hydroxyergocalciferol; 1-Hydroxyvitamin D2; 1α-Hydroxyergocalciferol; 1α-Hydroxyvitamin D₂; Hectorol; TSA 840

Molecular Formula:  C₂₈H₄₄O₂

Molar mass:412.66

Pharmacological action : This product is a kind of vitamin D₂ analogues for osteoporosis, secondary hyperthyroidism (SHPT), etc.. SHPT is the first vitamin D₂ analogue for the treatment of prostate cancer, colon cancer and breast cancer, and recent studies have indicated that the degree of the effect of Doxercalciferol of the bone marrow hyperplasia syndrome, chronic single nuclear cell leukemia and other cancers have a certain effect.