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Merck
CN

E5750

Ergocalciferol

40,000,000 USP units/g

Synonym(s):

Calciferol, Ercalciol, Ergosterol irradiated, Irradiated ergosterol, Vitamin D2

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About This Item

Empirical Formula (Hill Notation):
C28H44O
CAS Number:
50-14-6
Molecular Weight:
396.65
NACRES:
NA.79
PubChem Substance ID:
24894344
eCl@ss:
34058017
UNSPSC Code:
12352205
EC Number:
200-014-9
MDL number:
MFCD00166988
Beilstein/REAXYS Number:
1916682

Key Documents

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Product Name

Ergocalciferol, 40,000,000 USP units/g

InChI

1S/C28H44O/c1-19(2)20(3)9-10-22(5)26-15-16-27-23(8-7-17-28(26,27)6)12-13-24-18-25(29)14-11-21(24)4/h9-10,12-13,19-20,22,25-27,29H,4,7-8,11,14-18H2,1-3,5-6H3/b10-9+,23-12+,24-13-/t20-,22+,25-,26+,27-,28+/m0/s1

InChI key

MECHNRXZTMCUDQ-RKHKHRCZSA-N

SMILES string

CC(C)[C@@H](C)/C=C/[C@@H](C)[C@@]1([H])CC[C@@]([C@]1(C)CCC/2)([H])C2=C\C=C(C[C@@H](O)CC3)/C3=C

biological source

synthetic (organic)

assay

≥97%

form

powder

specific activity

40,000,000 USP units/g

technique(s)

HPLC: suitable

color

white to off-white

mp

114-118 °C (lit.)

storage temp.

2-8°C

Quality Level

200

Gene Information

human ... VDR(7421)

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Application

Ergocalciferol has been used as a component of the diet for rats, to study its bioavailability from ultraviolet-irradiated D2-rich yeast. It has also been used as a standard for identification and quantification of vitamins, as part of a study to determine the nutritional composition of food fishes.

Biochem/physiol Actions

Ergocalciferol (vitamin D2) and 25-Hydroxycholecalciferol (vitamin D3) are the two forms of vitamin D, which are activated in vivo by hydroxylation. Vitamin D2 and D3 may be used in a wide range of studies to assess their effects on function such as immune function and calcium homeostasis.
Ergocalciferol is used for antirachitic treatment. Vitamin D has an active role in bone mineralization. Severe deficiency of this vitamin has been associated with osteomalacia and rickets.

General description

Vitamin D2 or ergocalciferol is available through dietary supplements or plant sources. It is a provitamin, which is fat-soluble.

Packaging

Sealed ampule.

Preparation Note

1 USP unit = 1 I.U.

pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

signalword

Danger

Hazard Classifications

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

Storage Class

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

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
WXBF6505V
WXBF6170V
WXBF5446V
WXBF5212V
WXBF3735V

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Vitamin D: The Biotechnology of Ergosterol
Vandamme EJ
Biotechnology of microbial enzymes (1989)
Rock E
Food for the Ageing Population (2009)
Poor bioavailability of vitamin D2 from ultraviolet-irradiated D2-rich yeast in rats
Itkonen ST, et al.
Nutrition Research (New York, N.Y.), 59, 36-43 (2018)
Dietary Reference Intakes for Calcium and Vitamin D (2011)
Nutritional composition of food fishes and their importance in providing food and nutritional security
Mohanty BP, et al.
Food Chemistry, 293 (2019)
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