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H4637

Sigma-Aldrich

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
MDL number:
MFCD00063335
UNSPSC Code:
51111800
PubChem Substance ID:
24895648
NACRES:
NA.77

storage temp.

−20°C

Quality Level

100

SMILES string

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

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

InChI key

QOZFCKXEVSGWGS-ZHIYBZGJSA-N

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

Signal Word

Warning

Hazard Statements

H351

Hazard Classifications

Carc. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Muhammad Zahid et al.
Free radical biology & medicine, 49(3), 392-400 (2010-05-18)
Catechol estrogens, especially 4-hydroxylated metabolites of 17beta-estradiol (E(2)), are responsible for estrogen-induced carcinogenesis. 4-Hydroxyestradiol (4-OHE(2)), a major metabolite of E(2) formed preferentially by cytochrome P-450 1B1, is oxidized to E(2)-3,4-quinone, which can react with DNA to yield the depurinating adducts
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
H Ka et al.
Endocrinology, 142(6), 2303-2310 (2001-05-18)
Keratinocyte growth factor (KGF) is expressed by uterine endometrial epithelial cells during the estrous cycle and during pregnancy in pigs, whereas KGF receptor is expressed in conceptus trophectoderm and endometrial epithelia. In particular, KGF expression in the endometrium is highest
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.
Journal of clinical immunology, 31(1), 22-29 (2010-09-04)
Increased concentrations of estrogen metabolites (catecholestrogens) have been found in rheumatoid arthritis (RA) but the exact patho-etiology remains elusive. The binding of antibodies from the sera of RA patients and control subjects to native and modified DNA was studied by
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