Item Details
E-086 / E-086-1MLUpdated item number format
3-epi-25-Hydroxyvitamin D3
50 ug/mL in Ethanol | Certified Reference Material
A Certified Spiking Solution® of 3-epi-25-Hydroxyvitamin D3, the epi isomer of the prohormone 25-hydroxyvitamin D3. The presence of 3-epi-25-hydroxyvitamin D3 can affect accurate quantitation of 25-hydroxyvitamin D3 levels by most routine LC-MS/MS methods and to an unknown extent in immuno- and protein binding assays. This solution standard is suitable for critical quantitative applications in research and clinical environments including: for use in preparation of controls and calibrators for LC/UV and LC-MS/MS assays; as system tuning/suitability standards; linearity verification; internal proficiency testing; and for OEM use in preparation of reagents, development of assays and instrument IQ/OQ.
| Concentration |
: 50 ug/mL
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| Solvent |
: Ethanol
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| Unit Size |
: 1 mL/ampoule
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| CAS Number |
: 73809-05-9
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| Chemical Formula: |
: C27H44O2
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| Molecular Weight: |
: 400.64
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| Certificate of Analysis |
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| US List Price |
$449.00 EA
**All prices shown are for sales within US and Canada.**
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| Quantity |
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**Eligible Discounts Applied at Checkout**
| H-073 / H-073-1ML | 25-Hydroxyvitamin D2, 50 μg/mL | $205.00 |
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| H-074 / H-074-1ML | D6-25-Hydroxyvitamin D3 (26,26,26,27,27,27-D6), 50 μg/mL | $229.00 |
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| H-083 / H-083-1ML | 25-Hydroxyvitamin D3, 100 μg/mL | $177.00 |
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| H-089 / H-089-1ML | 1α,25-Dihydroxyvitamin D3, 5 µg/mL | $289.00 |
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| H-090 / H-090-1ML | 1α,25-Dihydroxyvitamin D2, 5 μg/mL | $266.00 |
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| H-107 / H-107-1ML | 1,25-Dihydroxyvitamin D3-13C3 (25,26,27-13C3), 5 µg/mL | $397.00 |
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| V-024 / V-024-1ML | Vitamin D2, 1.0 mg/mL | $111.00 |
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| V-025 / V-025-1ML | Vitamin D3, 1.0 mg/mL | $107.00 |
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Recommended Storage Condition