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H8004

Sigma-Aldrich

16α-Hydroxyestrone

≥99% (HPLC)

Synonym(s):

1,3,5(10)-Estratriene-3,16α-diol-17-one, 16α-3,16-Dihydroxyestra-1,3,5(10)-trien-17-one

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About This Item

Empirical Formula (Hill Notation):
C18H22O3
CAS Number:
566-76-7
Molecular Weight:
286.37
MDL number:
MFCD00870436
UNSPSC Code:
12352200
PubChem Substance ID:
24895817

Assay

≥99% (HPLC)
~95% (TLC)

SMILES string

C[C@]12CC[C@H]3[C@@H](CCc4cc(O)ccc34)[C@@H]1C[C@@H](O)C2=O

InChI

1S/C18H22O3/c1-18-7-6-13-12-5-3-11(19)8-10(12)2-4-14(13)15(18)9-16(20)17(18)21/h3,5,8,13-16,19-20H,2,4,6-7,9H2,1H3/t13-,14-,15+,16+,18-/m0/s1

InChI key

WPOCIZJTELRQMF-UJHHCITNSA-N

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Product No.
Description
Pricing

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H351,H360D,H362

Hazard Classifications

Carc. 2 - Lact. - Repr. 1A

Storage Class Code

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Christophe Stavrakakis et al.
Journal of AOAC International, 91(1), 237-246 (2008-04-02)
This paper presents an analytical method applied to the determination of 3 natural steroid hormones, estrone, 17 beta-estradiol, and 16 alpha-hydroxyestrone, and the contraceptive estrogen, 17 alpha-ethynylestradiol, at the sub-ng/L level in water samples [surface water and wastewater treatment plant
Susan R Sturgeon et al.
Nutrition and cancer, 62(2), 175-180 (2010-01-26)
Flaxseed is a rich source of dietary lignans. It has been hypothesized that lignans may decrease breast cancer risk through modulation of endogenous hormone levels. The aim of this study was to determine the effect of flaxseed supplementation on urinary
Michael Wacker et al.
Journal of women's health (2002), 18(4), 487-491 (2009-04-14)
Hispanic women are at lower risk for incident breast cancer, but the reasons for this lower risk are unknown. Among postmenopausal women, breast cancer risk is inversely associated with circulating levels of 2-hydroxyestrone but directly associated with levels of 16alpha-hydroxyestrone
I P Hsu et al.
International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 98(1), 29-33 (2007-05-01)
To evaluate the effects of soygerm isoflavones extracts on blood lipoproteins, antioxidative capacity and urinary estrogen metabolites in postmenopausal women who receive hormone therapy (HT). Thirty-nine volunteers receiving HT were recruited, and 33 completed the study. All subjects received 6
Shawn Patel et al.
Nutrition (Burbank, Los Angeles County, Calif.), 27(7-8), 778-781 (2010-11-03)
We recently identified an inverse relation between systolic blood pressure (SBP) and serum 16α-hydroxyestrone, a metabolite of 17β-estradiol, in postmenopausal women. Formation of 16α-hydroxyestrone is catalyzed primarily by CYP1A2, a cytochrome P450 enzyme. The objective of this study was to
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