Ercalcitriol-d₃  (Synonyms: 1α,25-Dihydroxy Vitamin D2-d₃)

Ercalcitriol-d₃ (1α,25-Dihydroxy Vitamin D2-d₃) is the deuterium labeled Ercalcitriol (HY-32350). Ercalcitriol (1α,25-Dihydroxy Vitamin D2) is a vitamin D receptor (VDR) agonist with high binding affinity. After binding to VDR, Ercalcitriol forms a complex with retinoid X receptor (RXR) to regulate target gene transcription. For example, Ercalcitriol induces human gingival/oral epithelial cells to produce human cat antimicrobial peptide (hCAP-18/LL-37), which has antimicrobial activity against periodontal pathogens such as Porphyromonas gingivalis. Ercalcitriol enhances the innate immune defense of the oral mucosa by promoting the expression of antimicrobial peptides, and is mainly used in the study of periodontal diseases and immune-related oral diseases^[1][2].

1. This compound can be used as a tracer.
2. This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

431.67

C₂₈H₄₁D₃O₃

1261254-46-9

60133-18-8

C[C@@]12[C@](CC[C@]2([H])[C@H](C)/C=C/[C@H](C)C(C)(O)C)([H])/C(CCC1)=C/C([2H])=C3\C([C@H](C[C@@H](C3)O)O)=C([2H])/[2H]

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Mawer EB, et al. A sensitive radioimmunoassay using a monoclonal antibody that is equipotent for ercalcitriol and calcitriol (1,25-dihydroxy vitamin D2 and D3).Clin Chim Acta. 1990 Oct 15;190(3):199-209.  [Content Brief]

  [2]. Tada H, et al. Vitamin D3 analog maxacalcitol (OCT) induces hCAP-18/LL-37 production in human oral epithelial cells. Biomed Res. 2016;37(3):199-205.  [Content Brief]