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3-epi-25-Hydroxyvitamin D3

3-epi-25-Hydroxyvitamin D3 Structure
3-epi-25-Hydroxyvitamin D3 structure
CAS No.
73809-05-9
Chemical Name:
3-epi-25-Hydroxyvitamin D3
Synonyms
3-epi-25-Hydroxyvitamin D3;3-epi-25-Hydroxyvitamin D3 solution;3-Epi-25-Hydroxyvitamin D3 in Ethanol;3-epi-25-hydroxy Vitamin D3 (Standard);3-Epi-25-Hydroxyvitamin D3-[13C5] in Ethanol;3-epi-25-Hydroxyvitamin D3;3-epi-25-Hydroxyvitamin D3 solution;3-[2-[1-(6-hydroxy-6-methylheptan-2-yl)-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol;1H-Indene-1-pentanol, octahydro-4-[(2Z)-2-[(5R)-5-hydroxy-2-methylenecyclohexylidene]ethylidene]-α,α,ε,7a-tetramethyl-, (εR,1R,3aS,4E,7aR)-;(1R,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(2R)-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol
CBNumber:
CB52465574
Molecular Formula:
C27H44O2
Molecular Weight:
400.64
MDL Number:
MFCD11656130
MOL File:
73809-05-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:53:24
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3-epi-25-Hydroxyvitamin D3 Properties

Melting point 60-62°C
Boiling point 529.2±33.0 °C(Predicted)
Density 1.01±0.1 g/cm3(Predicted)
Flash point 14 °C
storage temp. -20°C
solubility Chloroform: slightly soluble,Ethyl Acetate: slightly soluble
form A solid
pka 14.74±0.20(Predicted)
color white to off-white
Stability Light Sensitive, Temperature Sensitive, Toxic
Major Application detection
InChIKey JWUBBDSIWDLEOM-YBRVPPGONA-N
SMILES [C@]12(C)CCC/C(=C\C=C3\C[C@H](O)CCC\3=C)/[C@]1([H])CC[C@@H]2[C@H](C)CCCC(C)(C)O |&1:0,10,16,20,21,r|
UNSPSC Code 12352205
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Skull and Crossbones (GHS06)Health Hazard (GHS08)
GHS06,GHS08
Signal word  Danger
Hazard statements  H301+H311-H330-H372
Precautionary statements  P280-P301+P310+P330-P302+P352+P312-P304+P340+P310-P314
Hazard Codes  T+,F
Risk Statements  24/25-26-48/25-11
Safety Statements  28-36/37-45-16-7
RIDADR  UN1170 - class 3 - PG 2 - Ethanol, solution
WGK Germany  3
Storage Class 3 - Flammable liquids
Hazard Classifications Eye Irrit. 2
Flam. Liq. 2
NFPA 704
0
4 0

3-epi-25-Hydroxyvitamin D3 price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich E-086 3-epi-25-Hydroxyvitamin D3 solution 50?μg/mL in ethanol, certified reference material, Cerilliant? 73809-05-9 1mL $447 2026-04-30 Buy
Sigma-Aldrich 739936 3-epi-25-Hydroxyvitamin D3 100μg/mL in ethanol, 98% (CP) 73809-05-9 1ml $668 2026-04-30 Buy
Sigma-Aldrich 739928 3-epi-25-Hydroxyvitamin D3 solution 50?μg/mL in ethanol, 98% (CP) 73809-05-9 1ML $527 2026-04-30 Buy
Sigma-Aldrich 705993 3-epi-25-Hydroxyvitamin D3 98% (CP) 73809-05-9 1mg $1450 2026-04-30 Buy
Cayman Chemical 34200 3-epi-25-hydroxy Vitamin D3 ≥95% 73809-05-9 250μg $984 2026-04-30 Buy
Product number Packaging Price Buy
E-086 1mL $447 Buy
739936 1ml $668 Buy
739928 1ML $527 Buy
705993 1mg $1450 Buy
34200 250μg $984 Buy

3-epi-25-Hydroxyvitamin D3 Chemical Properties, Uses, Production

Chemical Properties

White to Off-White Solid

Uses

3-epi-25-Hydroxyvitamin D3 abbreviated as 3-epi-25(OH)D3 is a metabolite of vitamin D3 produced in the liver. 3-epi-25(OH)D3 is used as a biomarker to determine the status of vitamin D in the body. It can be also employed as an analytical standard for the quantification of 3-epi-25(OH)D3 molecules in human serum using the LC-MS/MS method.

Uses

The epimer metabolite of Calcifediol or 25-hydroxyvitamin D3 (C125700).

Uses

The labelled epimer metabolite of Calcifediol or 25-hydroxyvitamin D3 (C125700).

General Description

3-epi-25-Hydroxyvitamin D3 (C3-epimer) is a metabolite of vitamin D3. It is an epimer of 25-hydroxyvitamin D3 which differs only at C-3 position wherein -OH groupat C-3 carbon is in the α orientation rather than in the β orientation.

3-epi-25-Hydroxyvitamin D3 synthesis

84985-78-4
73809-05-9
Synthesis of 3-epi-25-Hydroxyvitamin D3 from (3β,5Z,7R,8α,22E)-9,10-Secoergosta-5,10(19),22-triene-3,7,8-triol

3-epi-25-Hydroxyvitamin D3 Preparation Products And Raw materials

Raw materials

1H-Inden-4-ol, octahydro-7a-methyl-1-[1-methyl-4-(2-methyl-1,3-dioxolan-2-yl)butyl]-, [1R-[1α(R*),3aβ,4α,7aα]]- (9CI) 2-Heptanone, 6-[(1R,3aR,4S,7aR)-4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]octahydro-7a-methyl-1H-inden-1-yl]-3-(trimethylsilyl)-, (6R)- 9,10-Secoergosta-5,10(19),22-triene-7,8-diol, 3-[[tris(1-methylethyl)silyl]oxy]-, (3β,5Z,7R,8α,22E)- (9CI) Silane, [[3-(2-chloroethylidene)-4-methylenecyclohexyl]oxy]tris(1-methylethyl)-, [S-(Z)]- (9CI) Ethanol, 2-[2-methylene-5-[[tris(1-methylethyl)silyl]oxy]cyclohexylidene]-, [S-(Z)]- (9CI)
4H-Inden-4-one, octahydro-7a-methyl-1-[1-methyl-4-(2-methyl-1,3-dioxolan-2-yl)butyl]-, [1R-[1α(R*),3aβ,7aα]]- (9CI) 2-Heptanone, 6-[(1R,3aR,4S,7aR)-octahydro-4-hydroxy-7a-methyl-1H-inden-1-yl]-, (6R)- Silane, (1,1-dimethylethyl)dimethyl[[octahydro-7a-methyl-1-(1,4,5-trimethyl-2-hexenyl)-1H-inden-4-yl]oxy]-, [1R-[1α(1R*,2E,4R*),3aβ,4α,7aα]]- (9CI) Toluene-4-sulfonic acid2-[4-(tert-butyl-dimethyl-silanyloxy)-7a-methyl-octahydro-inden-1-yl]-propyl ester [(1R,3aR,4S,7aR)-1-[(2S)-1-iodopropan-2-yl]-7a-methyl-1,2,3,3a,4,5,6,7-octahydroinden-4-yl]oxy-tert-butyl-dimethylsilane
(3β,5Z,7R,8α,22E)-9,10-Secoergosta-5,10(19),22-triene-3,7,8-triol Methyllithium

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Preparation Products

3-epi-25-Hydroxyvitamin D3 Suppliers

Global Suppliers ( 41)
Supplier Tel Email Country ProdList Advantage
SHANGHAI ZZBIO CO., LTD. 18019219489 18901678489 tech@zzbioco.com China 12062 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Chemsky（shanghai）International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80
Artis Biotech Co. Ltd. 18108108965 18108108965 sales@artisbio.com China 2503 58
Shanghai EFE Biological Technology Co., Ltd. 021-65675885 18964387627 info@efebio.com China 9799 58
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
Aikon International Limited 025-66061636 19370895928 qqyang@aikonchem.com China 15810 58
Alfa Chemistry +1-5166625404; Info@alfa-chemistry.com United States 20000 58
TargetMol Chemicals Inc. +1-781-999-5354; +1-00000000000 marketing@targetmol.com United States 32431 58
Supplier Advantage
SHANGHAI ZZBIO CO., LTD. 58
J & K SCIENTIFIC LTD. 76
Chemsky（shanghai）International Co.,Ltd. 50
Sigma-Aldrich 80
Artis Biotech Co. Ltd. 58
Shanghai EFE Biological Technology Co., Ltd. 58
Shanghai YuanYe Biotechnology Co., Ltd. 60
Aikon International Limited 58
Alfa Chemistry 58
TargetMol Chemicals Inc. 58

View Latest Price from 3-epi-25-Hydroxyvitamin D3 manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-epi-25-hydroxy Vitamin D3 pictures 2026-04-20 3-epi-25-hydroxy Vitamin D3
73809-05-9
 $1960.00 10g TargetMol Chemicals Inc.

73809-05-9 (3-epi-25-Hydroxyvitamin D3) Related Search:

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3-epi-25-Hydroxyvitamin D3 solution (1R,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(2R)-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol 1H-Indene-1-pentanol, octahydro-4-[(2Z)-2-[(5R)-5-hydroxy-2-methylenecyclohexylidene]ethylidene]-α,α,ε,7a-tetramethyl-, (εR,1R,3aS,4E,7aR)- 3-[2-[1-(6-hydroxy-6-methylheptan-2-yl)-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol 3-Epi-25-Hydroxyvitamin D3 in Ethanol 3-Epi-25-Hydroxyvitamin D3-[13C5] in Ethanol 3-epi-25-Hydroxyvitamin D3 solution 3-epi-25-Hydroxyvitamin D3 3-epi-25-hydroxy Vitamin D3 (Standard) 3-epi-25-Hydroxyvitamin D3 73809-05-9 C27H38D6O2 Isolabel Chiral Reagents Intermediates & Fine Chemicals Isotope Labelled Compounds Metabolites & Impurities Pharmaceuticals