Ergocalciferol
IUPAC name	(3β,5Z,7E,22E)-9,10-secoergosta-5,7,10(19),22-tetraen-3-ol
Other names	Drisdol (Sanofi-Synthelabo), Calcidol (Patrin Pharma)
Identifiers
CAS number	50-14-6
SMILES	CC(C)[C@@H](C)/C=C/[C@@H](C)[C@H]1CC[C@H]2/C (CCC[C@]12C)=C/C=C3/C[C@@H](O)CCC3=C
Properties
Molecular formula	C28H44O
Molar mass	396.65 g/mol
Melting point	114-118 °C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references

Ergocalciferol (Deltalin, Eli Lilly and Company) is a form of Vitamin D, also called vitamin D2. It has the systematic name "(3β,5Z,7E,22E)-9,10-secoergosta-5,7,10(19),22-tetraen-3-ol". It is created from viosterol, which in turn is created when ultraviolet light activates ergosterol.

References

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