Ergosterol

Synonyms

D2, Pro-Vitamin

Ergosta-5,7,22-trien-3-ol, (3beta,22E)-

Lumisterol

Pro Vitamin D2

Pro-Vitamin D2

Provitamin D 2

A steroid occurring in FUNGI. Irradiation with ULTRAVIOLET RAYS results in formation of ERGOCALCIFEROL (vitamin D2).