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Merck
CN

29447

(24S)-24,25-Dihydroxyvitamin D3

≥95.0% (HPLC)

Synonym(s):

(24S)-24,25-Dihydroxycholecalciferol

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About This Item

Empirical Formula (Hill Notation):
C27H44O3
CAS Number:
Molecular Weight:
416.64
UNSPSC Code:
12352200
PubChem Substance ID:
MDL number:
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Quality Segment

assay

≥95.0% (HPLC)

form

powder or crystals

color

colorless to white

mp

114.6 °C

storage temp.

−20°C

SMILES string

C[C@H](CC[C@H](O)C(C)(C)O)[C@H]1CC[C@H]2\C(CCC[C@]12C)=C\C=C3\C[C@@H](O)CCC3=C

InChI

1S/C27H44O3/c1-18-8-12-22(28)17-21(18)11-10-20-7-6-16-27(5)23(13-14-24(20)27)19(2)9-15-25(29)26(3,4)30/h10-11,19,22-25,28-30H,1,6-9,12-17H2,2-5H3/b20-10+,21-11-/t19-,22+,23-,24+,25+,27-/m1/s1

InChI key

FCKJYANJHNLEEP-WQUHCOROSA-N

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. 24S,25-Dihydroxyvitamin D3 should not be confused with 24R,25-Dihydroxyvitamin D3.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.


pictograms

Skull and crossbones

signalword

Danger

hcodes

Hazard Classifications

Acute Tox. 2 Oral

Storage Class

6.1B - Non-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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