Secosteroids

Isocyasterone is an insect metamorphosing substance, which can be isolated from Cyathula capitata.

Previtamin D2 is a precursor to Vitamin D2 (ergocalciferol) , formed through the photoisomerization of ergosterol, a compound found in fungi and some plants. Exposure to ultraviolet (UV) light triggers the conversion of ergosterol to previtamin D2, which then rapidly isomerizes to vitamin D2.

13(S)-HODE Cholesteryl ester is an ester product.

Convallagenin B is a natural product.

Bufospirostenin A is the first spirostanol to be isolated from an animal.

Progesterone impurity 7 is an impurity of Progesterone.

19-Nor-22-oxa-1a,25(OH)2-VD3 is a vitamin D₃ analogue. 19-Nor-22-oxa-1a,25(OH)2-VD3 has an extremely low affinity for the vitamin D receptor (VDR) and hardly binds to the vitamin D binding protein (DBP). 19-Nor-22-oxa-1a,25(OH)2-VD3 can effectively induce the differentiation of HL-60 cells and cause G₀-G₁ phase cell cycle arrest. 19-Nor-22-oxa-1a,25(OH)2-VD3 can be used to study diseases such as excessive hyperparathyroidism.

15β-Hydroxycholestene is an oxysterol.

15α-Hydroxycholestene is an oxysterol.

Galactosyl Cholesterol is a sterol.

Inokosterone is a potential agent target of estrogen receptor 1 in rheumatoid arthritis patients.

Alfacalcidol impurity 1 is an impurity of Alfacalcidol (HY-10003).

Alfacalciferol impurity 1 is an impurity of Alfacalciferol.

1α,25-Dihydroxyprevitamin D3 is the precursor of Vitamin D3.