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17938 Sigma

25-Hydroxyvitamin D3 monohydrate

≥99.0% (HPLC)

Synonym: 25-Hydroxycholecalciferol

  • CAS Number 63283-36-3

  • Empirical Formula (Hill Notation) C27H44O2 · H2O

  • Molecular Weight 418.65

  •  Beilstein Registry Number 4270041

  •  MDL number MFCD00867077

  •  PubChem Substance ID 24850810

  •  eCl@ss 34058003

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Properties

Related Categories Cell Biology, Nutrition Research, Vitamin D, Vitamin D3, Vitamins More...
InChI Key   JWUBBDSIWDLEOM-DTOXIADCSA-N
assay   ≥99.0% (HPLC)
shipped in   dry ice
storage temp.   −20°C

Description

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Biochem/physiol Actions

Cholecalciferol is an inactive form of vitamin D3 which undergoes various levels of hydroxylation to form active vitamin D3 analogs. 1α-Hydroxyvitamin D3 (alfacalcidol) is a synthetic analog that is metabolized to 1,25-dihydroxycholecalciferol, the biologically active form of vitamin D3. Other analogues of cholecalciferol result from different hydroxylations. 25-dihydroxycholecalciferol is a the major circulating form of vitamin D3 and a physiological precursor of 1α,25-Dihydroxycholecalciferol. The conversion is catalyzed by 25-Hydroxyvitamin D3 1-α-hydroxylase (VD3 1A hydroxylase) also known ascytochrome p450 27B1 (CYP27B1).

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.




All labs need water
Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 2811 6.1 / PGII
WGK Germany 
3
Protocols & Articles

Articles

Analysis of Vitamin D in Milk and Infant Formula using UHPLC/MS/MS per AOAC Method 2011.11

Fortification of milk, dairy products, infant and adult nutritionals with vitamin D is required in many countries to provide additional dietary vitamin D. The fortification of milk in the USA, for ex...
Olga Shimelis
Reporter US Volume 33.2
Keywords: Chromatography, Evaporation, High performance liquid chromatography, Mass spectrometry, Metabolites, Sample preparations, Saponifications, Separation, Solvents, Vitamins

Vitamin D and Prevention of Human Disease

Vitamin D2 (ergocalciferol) is naturally synthesized from ergosterol by invertebrates, fungi, and plants in response to ultraviolet B irradiation, while vitamin D3 synthesis (cholecalciferol) is uniq...
Chloe McClanahan
BioFiles 2009, 4.6, 4.
Keywords: Absorption, Angiogenesis, Biofiles, Biological processes, Cancer, Clinical, Gene expression, Growth factors, Hormones, Hydroxylations, Ligands, Metabolites, Transcription, Type, Vitamins

Peer-Reviewed Papers
15

References

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