α-Estradiol - Moligand™, 10mM in DMSO , CAS No.57-91-0

CAS: 57-91-0 Cat. No.: E424867 Formula: C18H24O2 Molecular Weight: 272.39 EC Number: 200-354-8
AVAILABLE TO ORDER
GRADE & PURITY Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. 10mM in DMSO
Synonyms
CCRIS 7203 | Estra-1,3,5(10)-triene-3,17alpha-diol | NCGC00161666-02 | Alfatradiol;Epiestradiol;Epiestrol | LMST02010029 | Oestra-1,3,5(10)-triene-3,17alpha-diol | 17.alpha.-Estradiol | 17alpha-E2 | Alfatradiol | alpha-Estradiol, powder, >=98% (TLC) | Oes
Storage
Store at -80°C
Shipped In
Dry ice packs + Cold packs
★
Size
Germany (EU)
USA*
Price
Qty
1ml
E424867-1ml
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5 In stock

€51.11

€60.65
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Why this grade

Moligand™, 10mM in DMSO Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -80°C Ships Dry ice packs + Cold packs Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 10 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards


Specifications

Synonyms
CCRIS 7203 | Estra-1,3,5(10)-triene-3,17alpha-diol | NCGC00161666-02 | Alfatradiol;Epiestradiol;Epiestrol | LMST02010029 | Oestra-1,3,5(10)-triene-3,17alpha-diol | 17.alpha.-Estradiol | 17alpha-E2 | Alfatradiol | alpha-Estradiol, powder, >=98% (TLC) | Oes
Specifications & Purity
Moligand™, 10mM in DMSO
Biochemical and Physiological Mechanisms
Endogenous estrogen receptor ligand (Kivalues are 0.2 and 1.2 nM for ERαand ERβreceptors respectively).β-Estradiolalso available.
Storage
Store at -80°C
Shipped In
Dry ice packs + Cold packs
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
Moligand™
Names and Identifiers
Pubchem Sid528768819
Canonical SmilesCC12CCC3C(C1CCC2O)CCC4=C3C=CC(=C4)O
IUPAC Name(8R,9S,13S,14S,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol
InChIKeyVOXZDWNPVJITMN-SFFUCWETSA-N
INCHI1S/C18H24O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,14-17,19-20H,2,4,6-9H2,1H3/t14-,15-,16+,17-,18+/m1/s1
Isomeric SMILES C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@H]2O)CCC4=C3C=CC(=C4)O
WGK Germany 3
RTECS KG3750000
Alternate CAS 57-91-0
NSC Number 20293
MeSH Entry Terms alfatradiol
Molecular Weight 272.39
Reaxy-Rn 2055276
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2055276&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
SubclassEstrane steroids
Intermediate Tree Nodes Not available
Direct ParentEstrogens and derivatives
Alternative Parents 3-hydroxysteroids  17-hydroxysteroids  Phenanthrenes and derivatives  Tetralins  1-hydroxy-2-unsubstituted benzenoids  Secondary alcohols  Cyclic alcohols and derivatives  Hydrocarbon derivatives  
Molecular FrameworkAromatic homopolycyclic compounds
Substituents Estrogen-skeleton - 17-hydroxysteroid - Hydroxysteroid - 3-hydroxysteroid - Phenanthrene - Tetralin - 1-hydroxy-2-unsubstituted benzenoid - Benzenoid - Cyclic alcohol - Secondary alcohol - Organic oxygen compound - Hydrocarbon derivative - Organooxygen compound - Alcohol - Aromatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as estrogens and derivatives. These are steroids with a structure containing a 3-hydroxylated estrane.
External Descriptors C18 steroids (estrogens) and derivatives
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
ESR1 Tclin Estrogen receptor (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
ESR2 Tclin Estrogen receptor beta (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
ESR1 Tclin Estrogen receptor alpha (17718 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
NR3C1 Tclin Glucocorticoid receptor (14987 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AR Tclin Androgen Receptor (11781 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ESR2 Tclin Estrogen receptor beta (9272 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HSD17B1 Tchem Estradiol 17-beta-dehydrogenase 1 (2224 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MCF7 (126967 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HSD17B7 Tchem 3-keto-steroid reductase (330 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
EHMT2 Tchem Histone-lysine N-methyltransferase, H3 lysine-9 specific 3 (93046 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
GPER1 Tchem G-protein coupled estrogen receptor 1 (111 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
UGT1A1 Tchem UDP-glucuronosyltransferase 1-1 (448 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Nr1i2 Nuclear receptor subfamily 1 group I member 2 (14 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
x_specific_rotation+46.0 to +52.0 deg(C=1, Dioxane)
x_melt_point_char222.0 - 226.0 °C
Molecular Weight272.400 g/mol
XLogP34.000
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass272.178 Da
Monoisotopic Mass272.178 Da
Topological Polar Surface Area40.500 Ų
Heavy Atom Count20
Formal Charge0
Complexity382.000
Isotope Atom Count0
Defined Atom Stereocenter Count5
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

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