1. Vitamin D Related
  2. 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 (53):

Cat. No. Product Name Effect Purity
  • HY-10002
    Calcitriol Agonist 99.81%
    Calcitriol is the most active metabolite of vitamin D.
  • HY-10001
    Calcipotriol Chemical 99.39%
    Calcipotriol is a synthetic VitD3 analogue with a high affinity for the vitamin D receptor.
  • HY-32339
    Maxacalcitol Activator
    Maxacalcitol (22-Oxacalcitriol) is non-calcemic vitamin D3 analog and ligand of VDR-like receptors.
  • HY-50919
    Paricalcitol Agonist 99.95%
    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 99.88%
    Calcifediol monohydrate(25-hydroxy Vitamin D3) is a prehormone that is produced in the liver by hydroxylation of vitamin D3 (cholecalciferol) by the enzyme cholecalciferol 25-hydroxylase IC50 value: Target: This metabolite is being measured by physicians worldwide to determine a patient's vitamin d status.
  • HY-15254
    3-O-(2-Aminoethyl)-25-hydroxyvitamin D3 Chemical >98.0%
    3-O-(2-Aminoethyl)-25-hydroxyvitamin D3 is a Vitamin D3 derivative.
  • HY-32341
    Seocalcitol Agonist 98.67%
    Seocalcitol is a vitamin D analog, binds vitamin D receptor protein from human osteosarcoma MG-63 cells with Kd of 0.27 nM.
  • HY-32349
    Ercalcidiol Modulator 99.34%
    Ercalcidiol(25-hydroxy Vitamin D2) is a metabolite of vitamin D2; is the ligand of VDR-like Receptors.
  • HY-15398
    Cholecalciferol Activator >98.0%
    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-10003
    Alfacalcidol Activator 99.93%
    Alfacalcidol (1-hydroxycholecalciferol; Alpha D3; 1.alpha.-Hydroxyvitamin D3) is a non-selective VDR activator medication.
  • HY-32343
    Secalciferol Activator 99.58%
    Secalciferol is a metabolite of Vitamin D, a possibly anti-inflammatory steroid which is involved in bone ossification.
  • HY-10001A
    Calcipotriol monohydrate Activator 99.73%
    Calcipotriol monohydrate is a synthetic VitD3 analogue with a high affinity for the vitamin D receptor.
  • HY-15157
    Calcitetrol Activator
    Calcitetrol(1α, 24, 25-Trihydroxy VD3) is the hormonally active form of vitamin D with three hydroxyl groups.
  • HY-32350
    Ercalcitriol Activator 98.50%
    Ercalcitriol (1α,25-Dihydroxy Vitamin D2) is a active metabolite of vitamin D2.
  • HY-75958
    Vitamin D4 Activator 99.62%
    Vitamin D4 is the active analogue of Vitamin D.
  • HY-75041
    Calcitriol Impurities A Activator 99.51%
    Calcitriol Impurities A is the impurity of Calcitriol, Calcitriol is the hormonally active form of vitamin D, Calcitriol is the active metabolite of vitamin D3 that activates the vitamin D receptor (VDR).
  • HY-A0020
    Eldecalcitol Activator 99.89%
    Eldecalcitol (ED-71; 2.beta.-(3-Hydroxypropoxy)-1.alpha.,25-dihydroxyvitamin D3) is an analog of 1,25-dihydroxyvitamin D3 that improves bone mineral density.
  • HY-13292
    Impurity B of Calcitriol Activator
    Impurity B of Calcitriol, Calcitriol(1,25-Dihydroxyvitamin D3; Rocaltrol ) is the hormonally active form of vitamin D, Calcitriol is the active metabolite of vitamin D3 that activates the vitamin D receptor (VDR).
  • HY-32348
    Doxercalciferol Activator 99.50%
    Doxercalciferol (Hectorol; 1.alpha.-Hydroxyvitamin D2) is a synthetic analog of vitamin D; is a Vitamin D2 analog that acts as a vitamin D receptor activator (VDRA).
  • HY-76937
    Impurity of Doxercalciferol Activator
    Impurity of Doxercalciferol is an impurity of doxercalciferol, which is a drug for secondary hyperparathyroidism and metabolic bone disease, a synthetic analog of ergocalciferol (vitamin D2), and it suppresses parathyroid synthesis and secretion.