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Merck
CN

H4637

4-Hydroxyestradiol

Synonym(s):

1,3,5(10)-Estratriene-3,4,17β-triol

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About This Item

Empirical Formula (Hill Notation):
C18H24O3
CAS Number:
5976-61-4
Molecular Weight:
288.38
NACRES:
NA.77
PubChem Substance ID:
24895648
UNSPSC Code:
51111800
MDL number:
MFCD00063335

Key Documents

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InChI

1S/C18H24O3/c1-18-9-8-11-10-4-6-15(19)17(21)13(10)3-2-12(11)14(18)5-7-16(18)20/h4,6,11-12,14,16,19-21H,2-3,5,7-9H2,1H3/t11-,12-,14+,16+,18+/m1/s1

SMILES string

[H][C@]12CC[C@]3(C)[C@@H](O)CC[C@@]3([H])[C@]1([H])CCc4c(O)c(O)ccc24

InChI key

QOZFCKXEVSGWGS-ZHIYBZGJSA-N

storage temp.

−20°C

Quality Level

100

Gene Information

human ... ESR1(2099)
rat ... Ar(24208)

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Biochem/physiol Actions

4-Hydroxyestradiol, an metabolite of estradiol, forms adducts with adenine (N3) and guanine (N7) by depurinating sites in DNA of cultured human breast epithelial cells. This effect may play an important role in malignant transformation of these cells.

pictograms

Health hazard
GHS08

signalword

Warning

hcodes

H351

Hazard Classifications

Carc. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

涉药品监管产品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCW0939
MKCW5625
MKCT7443
MKCT7271
MKCT5438

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Sin-Aye Park et al.
Free radical research, 46(8), 1051-1057 (2012-05-11)
Excess estrogen stimulates the proliferation of mammary epithelial cells and hence represents a major risk factor for breast cancer. Estrogen is subjected to cytochrome P450-catalysed oxidative metabolism to produce an oncogenic catechol estrogen, 4-hydroxyestradiol (4-OHE₂). 4-OHE₂ undergoes redox cycling during
Wahid Ali Khan et al.
Biochimie, 95(2), 329-335 (2012-10-17)
Catecholestrogens [4-hydroxyestradiol (4-OHE(2))] have been implicated in human carcinogenesis, although the mechanism remains unestablished. In this study pUC 18 plasmid DNA was modified with 4-OHE(2) and nitric oxide (NO). The modification induced in native DNA exhibited hyperchromicity, single strand breaks
Sin-Aye Park et al.
Cancer research, 69(6), 2416-2424 (2009-03-12)
Estrogen is converted by cytochrome P450 1B1 to 4-hydroxyestradiol (4-OHE(2)), a putative carcinogenic metabolite of estrogen. This catechol estrogen metabolite is oxidized further to produce a reactive quinone via semiquinone. Redox cycling between 4-OHE(2) and its quinoid generates reactive oxygen
Sibele I Meireles et al.
Cancer prevention research (Philadelphia, Pa.), 3(6), 707-717 (2010-06-03)
Lung cancer is the leading cause of cancer deaths in the United States, surpassing breast cancer as the primary cause of cancer-related mortality in women. The goal of the present study was to identify early molecular changes in the lung
Philip S Crooke et al.
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 20(7), 1502-1515 (2011-05-26)
Current models of breast cancer risk prediction do not directly reflect mammary estrogen metabolism or genetic variability in exposure to carcinogenic estrogen metabolites. We developed a model that simulates the kinetic effect of genetic variants of the enzymes CYP1A1, CYP1B1
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