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Merck

17944

Sigma-Aldrich

1α,25-Dihydroxyvitamin D2

≥97.0% (sum of vitamin and previtamin, HPLC)

Synonim(y):

1α,25-Dihydroxycalciferol

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About This Item

Wzór empiryczny (zapis Hilla):
C28H44O3
Numer CAS:
Masa cząsteczkowa:
428.65
Beilstein:
5635017
Numer MDL:
Kod UNSPSC:
12352205
Identyfikator substancji w PubChem:
NACRES:
NA.79

pochodzenie biologiczne

synthetic

Poziom jakości

Próba

≥97.0% (sum of vitamin and previtamin, HPLC)

Formularz

crystals

kolor

white to light yellow

temp. przechowywania

−70°C

ciąg SMILES

C[C@H](\C=C\[C@H](C)C(C)(C)O)[C@H]1CC[C@H]2\C(CCC[C@]12C)=C\C=C3\C[C@@H](O)C[C@H](O)C3=C

InChI

1S/C28H44O3/c1-18(9-10-19(2)27(4,5)31)24-13-14-25-21(8-7-15-28(24,25)6)11-12-22-16-23(29)17-26(30)20(22)3/h9-12,18-19,23-26,29-31H,3,7-8,13-17H2,1-2,4-6H3/b10-9+,21-11+,22-12-/t18-,19+,23-,24-,25+,26+,28-/m1/s1

Klucz InChI

ZGLHBRQAEXKACO-XJRQOBMKSA-N

Działania biochem./fizjol.

Ergocalciferol (vitamin D2) is activated in vivo by hydroxylation to 25-hydroxyergocalciferol and 1α,25-dihydroxycalciferol. Activated Vitamin D2 molecules may be used in a wide range of studies to assess their effects on functions such as immune function and calcium homeostasis.

Opakowanie

Bottomless glass bottle. Contents are inside inserted fused cone.
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Piktogramy

Skull and crossbonesHealth hazard

Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

Klasyfikacja zagrożeń

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - STOT RE 1 Oral

Kod klasy składowania

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Qing Wang et al.
Journal of cellular biochemistry, 89(6), 1087-1101 (2003-08-05)
Recent studies revealed that the MEK/ERK module of the mitogen-activated protein kinase (MAPK) signaling cascades is up-regulated in the early stages of 1alpha,25-dihydroxyvitamin D(3) (1,25D(3))-induced monocytic differentiation of human leukemia cells HL60. In the present study, we investigated whether another
Joanna Wietrzyk et al.
Cancer chemotherapy and pharmacology, 62(5), 787-797 (2008-01-12)
Active and less toxic vitamin D analogs could be useful for clinical applications. In the present study, we evaluated the toxicity and antitumor effect of two new synthetic analogs of vitamin D, namely PRI-1906 [(24E)-24a-Homo-(1S)-1,25-dihydroxyergocalciferol] and its side-chain unsaturated homo
Michał Chodyński et al.
Steroids, 67(9), 789-798 (2002-07-19)
A series of analogs of 1,25-dihydroxyergocalciferol (1-4) was synthesized and screened for their antiproliferative activity in vitro. The structure of new analogs was designed based on biological activity of the previously obtained side-chain modified analogs of vitamin D(2) and D(3).
R A Henik et al.
Journal of the American Veterinary Medical Association, 215(11), 1644-1649 (2003-10-22)
Rickets was diagnosed in a 1-year-old cat with a history of weakness, osteopenia, and recurrent fractures. Processes causing rickets include vitamin D deficiency caused by inadequate, nutrition, lack of exposure to sunlight, defective metabolism of parent vitamin D to active
Yuki Nagata et al.
Endocrine, 40(2), 315-317 (2011-08-09)
N-terminal propeptide of type I procollagen (PINP) is a marker of newly formed type I collagen. However, its role in hypophosphatemic rickets/osteomalacia has not yet been established. Metabolic bone markers were examined in patients with oncogenic osteomalacia (OOM) and X-linked

Produkty

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 uniquely initiated in the skin of vertebrates. During sun exposure, ultraviolet B photons are absorbed by 7-dehydrocholesterol, which is found within the plasma membranes of epidermal and dermal skin layers. This reaction yields an unstable derivative of 7-dehydrocholesterol, named precholecalcitrol, which rapidly rearranges to vitamin D3. Vitamin D binding protein (DBP) is a carrier protein responsible for drawing vitamin D3 from the plasma membrane into the dermal capillaries within the extracellular space.

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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