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M6383

Sigma-Aldrich

2-Methoxyestradiol

powder

Synonym(s):

1,3,5(10)-Estratriene-2,3,17-triol 2-methyl ether, 2,3,17β-Trihydroxy-1,3,5(10)-estratriene 2-methyl ether, 2-Hydroxyestradiol 2-methyl ether, 3,17β-Dihydroxy-2-methoxy-1,3,5(10)-estratriene

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About This Item

Empirical Formula (Hill Notation):
C19H26O3
CAS Number:
362-07-2
Molecular Weight:
302.41
MDL number:
MFCD00010489
UNSPSC Code:
51111800
PubChem Substance ID:
24278561
NACRES:
NA.77

sterility

non-sterile

Quality Level

200

Assay

≥98% (HPLC)
≥98% (TLC)

form

powder

color

white to faint yellow

mp

189-190  °C

solubility

DMSO: 10 mg/mL
ethanol: 10 mg/mL
H2O: insoluble

shipped in

ambient

storage temp.

room temp

SMILES string

OC1=C(C=C(C2=C1)[C@]3([H])[C@](CC2)([H])[C@]4([H])CC[C@H](O)[C@](C)4CC3)OC

InChI

1S/C19H26O3/c1-19-8-7-12-13(15(19)5-6-18(19)21)4-3-11-9-16(20)17(22-2)10-14(11)12/h9-10,12-13,15,18,20-21H,3-8H2,1-2H3/t12-,13+,15-,18-,19-/m0/s1

InChI key

CQOQDQWUFQDJMK-SSTWWWIQSA-N

Gene Information

human ... ESR1(2099) , ESR2(2100)

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General description

2-Methoxyestradiol (2-ME) is a metabolite, derived from estradiol. It is usually seen at high levels in the normal follicle.

Application

2-Methoxyestradiol has been used:
  • as hypoxia-inducible factor 1-alpha (HIF-1α) inhibitor to treat microglia to test whether hypoxia leads to cell death
  • to determine the anticancer potential in L-lactate-activated osteosarcoma cells
  • as a reference chemical and angiogenesis inhibitor to assess the performance of in vitro angiogenesis assay

Biochem/physiol Actions

2-Methoxyestradiol (2-ME) is a potent inhibitor of endothelial cell proliferation and angiogenesis.It has little affinity for classical estrogen receptors.
2-Methoxyestradiol plays a key role in the apoptosis of tumor cells. It also participates in microtubule stabilization. It exhibits cardioprotective activity and acts as an anticancer agent.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Irrit. 2 - Repr. 1B - Skin Irrit. 2 - STOT RE 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Hypoxia Induces autophagic cell death through hypoxia-inducible factor 1alpha in microglia
Yang Z, et al.
Testing, 9(5), e96509-e96509 (2014)
N Klauber et al.
Cancer research, 57(1), 81-86 (1997-01-01)
2-Methoxyestradiol (2-ME), an endogenous estrogen metabolite which disrupts microtubule function, has been shown to inhibit proliferating cells in vitro and suppress certain murine tumors in vivo. In vitro screening has determined that breast cancer cell lines are most sensitive to
The effect of steroid hormones on ovarian follicle development
Vitamins and Hormones, 107, 155-175 (2018)
R K Dubey et al.
Hypertension (Dallas, Tex. : 1979), 31(1 Pt 2), 522-528 (1998-02-07)
Postmenopausal women (PMW) have increased incidence of cardiovascular disease, and estrogen substitution therapy has been shown to have cardioprotective effects. Since abnormal growth of cardiac fibroblasts (CFs) is associated with hypertension and myocardial infarction and estrogen inhibits vascular smooth muscle
Adam M Corrigan et al.
Cell cycle (Georgetown, Tex.), 12(16), 2643-2655 (2013-08-03)
Spindle orientation defines the plane of cell division and, thereby, the spatial position of all daughter cells. Here, we develop a live cell microscopy-based methodology to extract spindle movements in human epithelial cell lines and study how spindles are brought
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