1. Signaling Pathways
  2. Vitamin D Related
  3. VD/VDR


Vitamin D is a secosteroidalprohormone, it can be synthesized at sufficient levels in skin, given adequate skin exposure to UV B radiation from sunlight. Vitamin D modulates its biological effects by directly regulating target gene expression through the Vitamin D receptor (VDR), a ligand-regulated transcription factor and a member of the nuclear receptor superfamily. Whether synthesized in the skin or ingested, vitamin D requires two hydroxylation steps to become the biologically active hormone, 1,25-dyhydroxyvitamin D3 [1,25(OH)2D3], a form that signals through the VDR. The hormone-bound VDR modulates target gene transcription in response to vitamin D. VDR acts as a master transcriptional regulator of autophagy. Activation of the VDR by vitamin D induces autophagy and an autophagic transcriptional signature in breast cancer (BC) cells.

There are 2 forms of vitamin D. Vitamin D2 (ergocalciferol) comes from irradiation of the yeast and plant sterol ergosterol, and vitamin D3 (cholecalciferol) is found in oily fish and cod liver oil and is made in the skin. Vitamin D represents vitamin D2 and vitamin D3.

Topical agents containing active vitamin D3 (calcitriol, 1α, 25- dihydroxyvitaminD3, VD3) analogues such as Tacalcitol, Calcipotriol and Maxacalcitol are widely used for psoriasis therapy.

VD/VDR Related Products (58):

Cat. No. Product Name Effect Purity
  • HY-10002
    Calcitriol Agonist 99.81%
    Calcitriol is the most active metabolite of vitamin D and also a vitamin D receptor (VDR) agonist.
  • HY-10001
    Calcipotriol Chemical 99.77%
    Calcipotriol is a synthetic VitD3 analogue with a high affinity for the vitamin D receptor.
  • HY-15398
    Cholecalciferol Activator 99.42%
    Cholecalciferol(Vitamin D3) is a naturally occuring form of vitamin D; Reported that upon metabolic activation, Cholecalciferol induces cell differentiation and prevents proliferation of cancer cells.
  • HY-50919
    Paricalcitol Agonist 99.96%
    Paricalcitol is a vitamin D receptor agonist, used for the prevention and treatment of secondary hyperparathyroidism (excessive secretion of parathyroid hormone) associated with chronic renal failure.
  • HY-32351A
    Calcifediol monohydrate Inhibitor 99.89%
    Calcifediol monohydrate (25-hydroxy Vitamin D3 monohydrate), a major circulating metabolite of vitamin D3, is a potent VDR inhibitor.
  • HY-32339
    Maxacalcitol Activator 99.71%
    Maxacalcitol (22-Oxacalcitriol) is non-calcemic vitamin D3 analog and ligand of VDR-like receptors.
  • HY-32349
    Ercalcidiol Modulator 98.45%
    Ercalcidiol is a metabolite of vitamin D2, is regarded as an indicator of vitamin D nutritional status.
  • HY-32351
    Calcifediol Inhibitor 99.94%
    Calcifediol (25-hydroxy Vitamin D3), a major circulating metabolite of vitamin D3, is a potent VDR inhibitor.
  • HY-32350
    Ercalcitriol Activator 98.17%
    Ercalcitriol (1α,25-Dihydroxy Vitamin D2) is an active metabolite of vitamin D2.
  • HY-76915
    24, 25-Dihydroxy VD3 Activator 98.20%
    24, 25-Dihydroxy VD3 is a compound which is closely related to 1,25-dihydroxyvitamin D3, the active form of vitamin D3, but like vitamin D3 itself and 25-hydroxyvitamin D3 is inactive as a hormone both in vitro and in vivo.
  • HY-75958
    Vitamin D4 Activator 98.79%
    Vitamin D4 is the active analogue of Vitamin D.
  • HY-32341
    Seocalcitol Agonist 99.15%
    Seocalcitol is a vitamin D analog, binds vitamin D receptor protein from human osteosarcoma MG-63 cells with Kd of 0.27 nM.
  • HY-76801
    24, 25-Dihydroxy VD2 Activator 99.89%
    24, 25-Dihydroxy VD2 is a hydroxylated metabolite of Vitamin D2; a synthetic analog of Vitamin D.
  • HY-32343
    Secalciferol Activator 98.58%
    Secalciferol is a metabolite of Vitamin D, a possibly anti-inflammatory steroid which is involved in bone ossification.
  • HY-76542
    Vitamin D2 Activator 99.53%
    Vitamin D2 (Ergocalciferol) is a form of vitamin D, used as a vitamin D supplement.
  • HY-10003
    Alfacalcidol Activator 99.93%
    Alfacalcidol (1-hydroxycholecalciferol) is a vitamin D active metabolites, acts as a non-selective VDR activator medication, and widely be used in the management of osteoporosis.
  • HY-15254
    3-O-(2-Aminoethyl)-25-hydroxyvitamin D3 Chemical 98.71%
    3-O-(2-Aminoethyl)-25-hydroxyvitamin D3 is a Vitamin D3 derivative.
  • HY-A0020
    Eldecalcitol Activator 99.01%
    Eldecalcitol (ED-71) is an orally active analogue of active vitamin D used in the treatment of osteoporosis. Eldecalcitol (ED-71) possesses a strong inhibitory effect on bone resorption and causes a significant increase in bone mineral density.
  • HY-32348
    Doxercalciferol Activator 99.85%
    Doxercalciferol is a Vitamin D2 analog, acts as an activator of Vitamin D receptor, and prevent renal disease.
  • HY-10001A
    Calcipotriol monohydrate Activator 99.75%
    Calcipotriol monohydrate is a synthetic VitD3 analogue with a high affinity for the vitamin D receptor.
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