3-epi-Vitamin D3 (Epicholecalciferol) (Compound 4), a Vitamin D3 analogue, is aHedgehogpathwayinhibitor with anIC₅₀of 39.2 μM measured in U87MG cells^[1].

3-epi-Vitamin D3 (Epicholecalciferol) (5 or 10 μM) significantly upregulates Cyp24A1 in U87MG, HT-29 and C3H10T1/2 cells^[1].

384.64

Solid

C₂₇H₄₄O

57651-82-8

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)