17937

Sigma-Aldrich

25-羟基维生素D2

≥95.0% (HPLC)

别名:
25-羟基麦角甾醇, 25-羟基维生素, 骨化二醇
Empirical Formula (Hill Notation):
C28H44O2
CAS号:
分子量:
412.65
Beilstein/REAXYS Number:
4716773
MDL编号:
eCl@ss:
34058017
PubChem化学物质编号:

质量水平

200

生物来源

synthetic

测定

≥95.0% (HPLC)

形式

crystals

颜色

white to colorless

mp

88.0-95.0 °C

储存温度

−70°C

SMILES string

[H][C@@]12CC[C@H]([C@H](C)\C=C\[C@H](C)C(C)(C)O)[C@@]1(C)CCC/C2=C\C=C3\C[C@@H](O)CCC3=C

InChI

1S/C28H44O2/c1-19-10-14-24(29)18-23(19)13-12-22-8-7-17-28(6)25(15-16-26(22)28)20(2)9-11-21(3)27(4,5)30/h9,11-13,20-21,24-26,29-30H,1,7-8,10,14-18H2,2-6H3/b11-9+,22-12+,23-13-/t20-,21+,24+,25-,26+,28-/m1/s1

InChI key

KJKIIUAXZGLUND-ICCVIKJNSA-N

相关类别

包装

1 mg in poly bottle
琥珀色聚丙烯瓶

生化/生理作用

麦角钙化醇(维生素D2)在 体内 通过羟基化反应而活化,生成25-羟基麦角钙化醇和1α,25-二羟基钙化醇。 活化的维生素D2分子可用于广泛的研究,以评估其对免疫功能和钙稳态等功能的影响。

其他说明

Scripps Center for Metabolomics(斯克里普斯代谢组学中心)独立生成的串联质谱数据,可以PDF格式查看或下载。 17937.pdf 经过测试的代谢物在Scripps Center for Metabolomics(斯克里普斯代谢组学中心) METLIN 代谢物数据库中有重点介绍。更多信息请见sigma.com/metlin。

象形图

Skull and crossbonesHealth hazard

警示用语:

Danger

hazcat

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

storage_class_code

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK Germany

WGK 3

闪点(F)

Not applicable

闪点(C)

Not applicable

个人防护装备

Eyeshields, Faceshields, Gloves, type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges

分析证书

原产地证书 (CofO)

Tarja Nurmi et al.
Analytical biochemistry, 435(1), 1-9 (2013-01-01)
The diode array detector in our high-performance liquid chromatography (HPLC) method for 25-hydroxyvitamin D(3) (25OHD(3)) and 25-hydroxyvitamin D(2) (25OHD(2)) did not perform satisfactorily for measuring human serum concentrations below 30nM. Because of a need for a reliable self-managed method in...
Corinne D Engelman et al.
The Journal of nutrition, 143(1), 17-26 (2012-11-30)
Vitamin D deficiency {defined by the blood concentration of 25-hydroxyvitamin D [25(OH)D]} has been associated with many adverse health outcomes. Genetic and nongenetic factors account for variation in 25(OH)D, but the role of interactions between these factors is unknown. To...
Peter F Schnatz et al.
Clinical chemistry, 60(4), 600-609 (2013-11-07)
Supplementation with vitamin D has received attention as a potential cardioprotective strategy. Biologically plausible mechanisms have been proposed to link vitamin D to coronary heart disease (CHD) prevention, and observational studies suggest an inverse association between serum 25-hydroxyvitamin D (25OHD)...
Paul Haggarty et al.
The British journal of nutrition, 109(5), 898-905 (2012-11-22)
The aims of the present study were to determine compliance with current advice on vitamin D and to assess the influence of season, dietary intake, supplement use and deprivation on vitamin D status in pregnant mothers and newborns in the...
Kevin D Cashman et al.
The British journal of nutrition, 112(2), 193-202 (2014-05-02)
It has been suggested that vitamin D₂ is not very prevalent in the human food chain. However, data from a number of recent intervention studies suggest that the majority of subjects had measurable serum 25-hydroxyvitamin D₂ (25(OH)D₂) concentrations. Serum 25(OH)D₂...
技术文章
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.
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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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实验方案
While quantitative analysis was performed for Vitamins D2 and D3, the samples were scanned for the presence of the 25-hydroxy metabolites.
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