Cholecalciferol

Cholecalciferol is the naturally occurring form of vitamin D synthesised in skin upon UV-B exposure, acting as the precursor to the active hormone calcitriol through sequential hepatic and renal hydroxylation. It is used for vitamin D deficiency prevention and treatment across all age groups. Simson Pharma's Cholecalciferol reference standard and impurities support the precise potency testing required across this high-volume vitamin D supplement category.

Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) supply high-quality Cholecalciferol Reference Standards, pharmacopoeial reference materials, and its related impurities to pharmaceutical manufacturers, CROs, analytical laboratories, universities, and regulatory organizations worldwide. To service the Europe and America market efficiently, Simson Pharma Limited has set up Simson Pharma Global Ltd. in United Kingdom and Simson Pharma Global LLC in USA respectively.

Pharmaceutical Reference Standards / Impurity Standards

Cholecalciferol
Cholecalciferol
  • CAT. No.C630000
  • CAS. No.67-97-0
  • Mol. F.C27H44O
  • Mol. W.384.64 g/mol
  • Stock Status:Instock
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Cholecalciferol EP Impurity B
Cholecalciferol EP Impurity B
  • CAT. No.C630001
  • CAS. No.434-16-2
  • Mol. F.C27H44O
  • Mol. W.384.64 g/mol
  • Stock Status:Instock
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Cholecalciferol EP Impurity A
Cholecalciferol EP Impurity A
  • CAT. No.C630003
  • CAS. No.22350-41-0
  • Mol. F.C27H44O
  • Mol. W.384.64 g/mol
  • Stock Status:Instock
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Precalciferol
Precalciferol
  • CAT. No.C630004
  • CAS. No.1173-13-3
  • Mol. F.C27H44O
  • Mol. W.384.64 g/mol
  • Stock Status:Custom Synthesis
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Calcifediol Monohydrate
Calcifediol Monohydrate
  • CAT. No.C630011
  • CAS. No.63283-36-3
  • Mol. F.C27H46O3
  • Mol. W.418.65 g/mol
  • Stock Status:Custom Synthesis
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Cholecalciferol EP Impurity D
Cholecalciferol EP Impurity D
  • CAT. No.C630012
  • CAS. No.22350-43-2
  • Mol. F.C27H44O
  • Mol. W.384.64 g/mol
  • Stock Status:Instock
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Cholecalciferol EP Impurity E
Cholecalciferol EP Impurity E
  • CAT. No.C630013
  • CAS. No.17592-07-3
  • Mol. F.C27H44O
  • Mol. W.384.64 g/mol
  • Stock Status:Limited Stock
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Cholecalciferol EP Impurity C
Cholecalciferol EP Impurity C
  • CAT. No.C630015
  • CAS. No.5226-01-7
  • Mol. F.C27H44O
  • Mol. W.384.64 g/mol
  • Stock Status:Instock
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24,25-Dihydroxy Vitamin D3
24,25-Dihydroxy Vitamin D3
  • CAT. No.C630016
  • CAS. No.40013-87-4
  • Mol. F.C27H44O3
  • Mol. W.416.64 g/mol
  • Stock Status:Custom Synthesis
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Vitamin D3 (100,000 IU/g)
Vitamin D3 (100,000 IU/g)
  • CAT. No.C630017
  • CAS. No.67-97-0
  • Mol. F.C27H44O
  • Mol. W.384.64 g/mol
  • Stock Status:Instock
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Cholecalciferol EP Impurity F
Cholecalciferol EP Impurity F
  • CAT. No.C630019
  • CAS. No.31316-20-8
  • Mol. F.C31H50O2
  • Mol. W.454.70 g/mol
  • Stock Status:Instock
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Vitamin-D3 Octanoate
Vitamin-D3 Octanoate
  • CAT. No.C630021
  • CAS. No.927822-16-0
  • Mol. F.C35H58O2
  • Mol. W.510.83 g/mol
  • Stock Status:Custom Synthesis
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Vitamin-D3 Decanoate
Vitamin-D3 Decanoate
  • CAT. No.C630022
  • CAS. No.158180-04-2
  • Mol. F.C37H62O2
  • Mol. W.538.89 g/mol
  • Stock Status:Custom Synthesis
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Pre-vitamin-D3 Octanoate
Pre-vitamin-D3 Octanoate
  • CAT. No.C630023
  • CAS. No.927822-17-1
  • Mol. F.C35H58O2
  • Mol. W.510.83 g/mol
  • Stock Status:Custom Synthesis
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Pre-Vitamin-D3 Decanoate
Pre-Vitamin-D3 Decanoate
  • CAT. No.C630024
  • CAS. No.927822-18-2
  • Mol. F.C37H62O2
  • Mol. W.538.89 g/mol
  • Stock Status:Custom Synthesis
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25-Hydroxyvitamin D3 3-Hemisuccinate
25-Hydroxyvitamin D3 3-Hemisuccinate
  • CAT. No.C630027
  • CAS. No.69511-19-9
  • Mol. F.C32H48O5
  • Mol. W.512.70 g/mol
  • Stock Status:Custom Synthesis
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Cholecalciferol Impurity 1
Cholecalciferol Impurity 1
  • CAT. No.C630028
  • CAS. No.89231-90-3
  • Mol. F.C27H44O2
  • Mol. W.400.64 g/mol
  • Stock Status:Custom Synthesis
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1-Alpha-Hydroxy-Previtamin D3
1-Alpha-Hydroxy-Previtamin D3
  • CAT. No.C630029
  • CAS. No.41461-13-6
  • Mol. F.C27H44O2
  • Mol. W.400.64 g/mol
  • Stock Status:Custom Synthesis
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Vitamin D3 Impurity 1
Vitamin D3 Impurity 1
  • CAT. No.C630030
  • CAS. No.NA
  • Mol. F.C27H46O3
  • Mol. W.418.65 g/mol
  • Stock Status:Custom Synthesis
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Vitamin D3 Impurity 2
Vitamin D3 Impurity 2
  • CAT. No.C630031
  • CAS. No.NA
  • Mol. F.C27H46O3
  • Mol. W.418.65 g/mol
  • Stock Status:Custom Synthesis
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Vitamin D3 Impurity 3
Vitamin D3 Impurity 3
  • CAT. No.C630032
  • CAS. No.125521-02-0
  • Mol. F.C27H42O
  • Mol. W.382.62 g/mol
  • Stock Status:Custom Synthesis
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Vitamin D3(40000 IU/mg)
Vitamin D3(40000 IU/mg)
  • CAT. No.C630033
  • CAS. No.67-97-0
  • Mol. F.C27H44O
  • Mol. W.384.64 g/mol
  • Stock Status:Custom Synthesis
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Preergocalciferol
Preergocalciferol
  • CAT. No.C630034
  • CAS. No.NA
  • Mol. F.C28H44O
  • Mol. W.396.65 g/mol
  • Stock Status:Custom Synthesis
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Metabolites

3-epi-25-Hydroxy Vitamin D3
3-epi-25-Hydroxy Vitamin D3
  • CAT. No.C630020
  • CAS. No.73809-05-9
  • Mol. F.C27H44O2
  • Mol. W.400.64 g/mol
  • Stock Status:Limited Stock
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Isotope Labelled Compounds

Cholecalciferol-D6
Cholecalciferol-D6
  • CAT. No.C630009
  • CAS. No.67-97-0 (Unlabelled)
  • Mol. F.C27H38D6O
  • Mol. W.390.67 g/mol
  • Stock Status:Custom Synthesis
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1alphaHydroxyvitamin-D3
1alphaHydroxyvitamin-D3
  • CAT. No.C630010
  • CAS. No.NA
  • Mol. F.C27H41D3O2
  • Mol. W.403.66 g/mol
  • Stock Status:Custom Synthesis
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25-Hydroxy Vitamin D3-d6
25-Hydroxy Vitamin D3-d6
  • CAT. No.C630018
  • CAS. No.78782-98-6
  • Mol. F.C27H38D6O2
  • Mol. W.406.68 g/mol
  • Stock Status:Custom Synthesis
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Cholecalciferol-D7
Cholecalciferol-D7
  • CAT. No.C630025
  • CAS. No.1627523-19-6
  • Mol. F.C27H37D7O
  • Mol. W.391.68 g/mol
  • Stock Status:Custom Synthesis
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Vitamin D3
Vitamin D3
  • CAT. No.C630026
  • CAS. No.NA
  • Mol. F.NA
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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