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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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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
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
MaryFran R Sowers et al.
Arthritis and rheumatism, 54(8), 2481-2487 (2006-07-28)
To determine if levels of endogenous estrogen or estrogen metabolites are associated with an increased risk of developing knee osteoarthritis (OA) in women. Serum estradiol (E2) and 2 urinary estrogen metabolites (2-hydroxyestrone and 16alpha-hydroxyestrone) with radiographically defined prevalent and incident
A Zeleniuch-Jacquotte et al.
British journal of cancer, 105(9), 1458-1464 (2011-09-29)
It has been suggested that the relative importance of oestrogen-metabolising pathways may affect the risk of oestrogen-dependent tumours including endometrial cancer. One hypothesis is that the 2-hydroxy pathway is protective, whereas the 16α-hydroxy pathway is harmful. We conducted a case-control
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
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