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IUPAC name:

(1R,3S,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-7a-Methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol

Other name:Alphacalcidol; 1-Hydroxycholecalciferol

CAS No.:41294-56-8

Molecular Formula: C₂₇H₄₄O₂

Molar mass:400.64

Alias: Alfa D₃; 1 alpha hydroxy vitamin D₃

Pharmacology action : to increase the weight of the small intestine and kidney tubules, inhibit parathyroid hyperplasia, reduce parathyroid hormone synthesis and release, inhibit bone resorption; increase the synthesis of transforming growth factor -I (TGF-) and insulin like growth factor (IGF-I).