Basic Description

Synonyms	25-Hydroxy Vitamin D2 \| A288AR3C9H \| 25-Hydroxyergocalciferol \| 25-hydroxyergocalciferol- \| (S,Z)-3-(2-((1R,3aS,7aR,E)-1-((2R,5S,E)-6-Hydroxy-5,6-dimethylhept-3-en-2-yl)-7a-methyloctahydro-4H-inden-4-ylidene)ethylidene)-4-methylenecyclohexan-1-ol \| 25-Hyd
Specifications & Purity	≥98%
Biochemical and Physiological Mechanisms	Ercalcidiol(25-hydroxy Vitamin D2) isVDR-like Receptors. Ercalcidiol(25-hydroxy Vitamin D2) is a metabolite of vitamin D2.Biologically active metabolite of Vitamin D 2 metabolite. Active in vivo.
Storage Temp	Store at -20°C,Argon charged
Shipped In	Ice chest + Ice pads This product requires cold chain shipping. Ground and other economy services are not available.
Note	Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Lipids and lipid-like molecules
  - Class Steroids and steroid derivatives
    - Subclass Vitamin D and derivatives

Kingdom	Organic compounds
Superclass	Lipids and lipid-like molecules
Class	Steroids and steroid derivatives
Subclass	Vitamin D and derivatives
Intermediate Tree Nodes	Not available
Direct Parent	Vitamin D and derivatives
Alternative Parents	Triterpenoids Tertiary alcohols Secondary alcohols Cyclic alcohols and derivatives Hydrocarbon derivatives
Molecular Framework	Aliphatic homopolycyclic compounds
Substituents	Triterpenoid - Tertiary alcohol - Cyclic alcohol - Secondary alcohol - Organic oxygen compound - Hydrocarbon derivative - Organooxygen compound - Alcohol - Aliphatic homopolycyclic compound
Description	This compound belongs to the class of organic compounds known as vitamin d and derivatives. These are compounds containing a secosteroid backbone, usually secoergostane or secocholestane.
External Descriptors	Vitamin D2 and derivatives
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

Names and Identifiers

Pubchem Sid	504763947
Pubchem Sid Url	https://pubchem.ncbi.nlm.nih.gov/substance/504763947
IUPAC Name	(1S,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(E,2R,5S)-6-hydroxy-5,6-dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol
INCHI	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
InChIKey	KJKIIUAXZGLUND-ICCVIKJNSA-N
Smiles	CC(C=CC(C)C(C)(C)O)C1CCC2C1(CCCC2=CC=C3CC(CCC3=C)O)C
Isomeric SMILES	C[C@H](/C=C/[C@H](C)C(C)(C)O)[C@H]1CC[C@@H]\2[C@@]1(CCC/C2=C\C=C/3\C[C@H](CCC3=C)O)C
WGK Germany	3
PubChem CID	5710148
Molecular Weight	412.65
Beilstein	4716773

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

16 results found

Lot Number	Certificate Type	Date	Item
L2404374	Certificate of Analysis	Nov 11, 2024	H120132
L2404375	Certificate of Analysis	Nov 11, 2024	H120132
L2404376	Certificate of Analysis	Nov 11, 2024	H120132
C2505773	Certificate of Analysis	Jun 19, 2024	H120132
F2517743	Certificate of Analysis	Apr 09, 2024	H120132
D2417342	Certificate of Analysis	Apr 09, 2024	H120132
D2417343	Certificate of Analysis	Apr 09, 2024	H120132
D2417345	Certificate of Analysis	Apr 09, 2024	H120132
D2417347	Certificate of Analysis	Apr 09, 2024	H120132
I2425079	Certificate of Analysis	Apr 09, 2024	H120132
K2223458	Certificate of Analysis	Nov 17, 2022	H120132
B2427600	Certificate of Analysis	Nov 17, 2022	H120132
K2223489	Certificate of Analysis	Nov 17, 2022	H120132
K2223492	Certificate of Analysis	Nov 17, 2022	H120132
K2223493	Certificate of Analysis	Nov 17, 2022	H120132
K2223456	Certificate of Analysis	Nov 17, 2022	H120132

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Chemical and Physical Properties

Sensitivity	Light sensitive
Molecular Weight	412.600 g/mol
XLogP3	6.000
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	5
Exact Mass	412.334 Da
Monoisotopic Mass	412.334 Da
Topological Polar Surface Area	40.500 Å²
Heavy Atom Count	30
Formal Charge	0
Complexity	725.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	6
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	3
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	3
Covalently-Bonded Unit Count	1

Citations of This Product

How to Cite Aladdin Scientific Products?

1. Chen Huaiyi, Liao Ziwei, Sun Gongwei, Wu Tianhao, Yang Jinlei, Pan Siyuan, Zhang Sichun, Tang Fei. (2025) Affinity Capture Coupled with Nano-Electrospray Ionization-Mass Spectrometry for Rapid Detection of 25-hydroxyvitamin D3 in Serum. Journal of Analysis and Testing, (1-5).
2. Cai Tongji, Chen Meilun, Yang Jie, Tang Chunhua, Lu Xiaoling, Wei Zheng, Jiang Hanbing, Hou Yucui, Zhao Jia, Yu Peng. (2024) An AuNPs-based electrochemical aptasensor for the detection of 25-hydroxy vitamin D3. ANALYTICAL SCIENCES, (1-9).
3. Zi-qing Wang, Li-ping Hao, Zi-xuan Meng, Hao-ran Zhang, Wei-jun Kang, Lian-feng Ai. (2025) Simultaneous determination of 25(OH)D2, 25(OH)D3 and 1α,25(OH)2D3 in human serum by derivatization-liquid chromatography-tandem mass spectrometry. ANALYTICAL BIOCHEMISTRY, 701 (115821).

Solution Calculators

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SKU	Size	Availability	Price
H120132-1mg	1mg	3	$89.90
H120132-5mg	5mg	3	$339.90
H120132-10mg	10mg	3	$549.90
H120132-25mg	25mg	2	$889.90
H120132-50mg	50mg	2	$1,199.90

25-Hydroxyvitamin D₂ - 98%, high purity , CAS No.21343-40-8