3-epi-25-Hydroxyvitamin D3

98% (CP)

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Quality Level


98% (CP)




mass spectrometry (MS): suitable


white to off-white

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3-epi-25-Hydroxyvitamin D3 is also known as 3-epi-25(OH)D3. It is a metabolite of vitamin D3 formed in the liver. 3-epi-25(OH)D3 is used as a biomarker to determine the status of vitamin D in the body. It can be also employed as an analytical standard to measure the concentration of 3-epi-25(OH)D3 molecules in human serum.


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Skull and crossbonesHealth hazard

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Hazard Statements


UN 2811 6.1 / PGII

WGK Germany


Flash Point(F)

Not applicable

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Not applicable

Certificate of Analysis
Certificate of Origin
Yosef Dror et al.
The Journal of clinical endocrinology and metabolism, 98(5), 2160-2167 (2013-03-28)
Low serum calcidiol has been associated with multiple comorbidities and mortality but no "safe" range has been found for the upper concentration. We aim to establish the upper threshold of serum calcidiol, beyond which there is an increased risk for...
P V Pradeep et al.
Journal of postgraduate medicine, 59(1), 4-8 (2013-03-26)
No single factor can predict the occurrence of post total thyroidectomy (TT) hypocalcemia. This study was conducted to look at various factors usually implicated in post TT clinically significant hypocalcemia (CSH) and to develop a scoring system using a combination...
3-epi-25 hydroxyvitamin D concentrations are not correlated with age in a cohort of infants and adults
Strathmann FG, et al.
Clinica Chimica Acta; International Journal of Clinical Chemistry, 413(1-2), 203-206 (2012)
Alex Aregbesola et al.
Journal of epidemiology and community health, 67(6), 533-536 (2013-04-19)
Vitamin D has been suggested to have a role in infection defence and on the immune system. We therefore investigated the effect of serum 25-hydroxyvitamin D₃ (25(OH)D₃) on the risk of incident hospitalised pneumonia in an ageing general population in...
Qi Wang et al.
The Journal of steroid biochemistry and molecular biology, 135, 43-50 (2013-01-22)
Vitamin D has been known to be closely associated with diabetes and periodontitis while the underlying mechanism has yet to be clarified. The present study aimed to discover the effect of 25-hydroxyvitamin D3 (25-OHD3) on glycemic control and periodontal health...
Novel sample prep technique coupled with the unique selectivity of the Ascentis Express F5 column enables a fast and simplified bioanalytical method for associated vitamin D metabolites.
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Using HybridSPE-Phospholipid, Ascentis Express, and Other LC-MS Workflow Components
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Improvement in LC/MS Analysis of Vitamin D Metabolites in Serum by Leveraging Column Selectivity and Effective Sample Prep
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This application shows an Ascentis Express F5 provided rapid resolution of the isobaric vitamin D metabolites. MS detection provides the necessary secondary resolution.
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Related Content
The metabolic role and health implications of the various vitamin D isoforms are of current clinical interest. Therefore, it is important to have an analytical method that will resolve all of the known isoforms with necessary sensitivity and specificity
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