Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

View All Documentation

75292

Sigma-Aldrich

Estriol

purum, ≥97.0% (HPLC)

Synonym(s):

1,3,5(10)-Estratriene-3,16α,17β-triol, 16α-Hydroxyestradiol, 3,16α,17β-Trihydroxy-1,3,5(10)-estratriene

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C18H24O3
CAS Number:
50-27-1
Molecular Weight:
288.38
Beilstein/REAXYS Number:
2508172
EC Number:
200-022-2
MDL number:
MFCD00003691
UNSPSC Code:
51111800
PubChem Substance ID:
329766323

grade

purum

assay

≥97.0% (HPLC)

optical activity

[α]20/D +57±2°, c = 0.4% in dioxane

ign. residue

≤0.1% (as SO4)

loss

≤0.5% loss on drying, 110 °C

mp

280-282 °C (lit.)
280-282 °C

SMILES string

C[C@]12CC[C@H]3[C@@H](CCc4cc(O)ccc34)[C@@H]1C[C@@H](O)[C@@H]2O

InChI

1S/C18H24O3/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/h3,5,8,13-17,19-21H,2,4,6-7,9H2,1H3/t13-,14-,15+,16-,17+,18+/m1/s1

InChI key

PROQIPRRNZUXQM-ZXXIGWHRSA-N

Looking for similar products? Visit Product Comparison Guide

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

pictograms

Health hazard
GHS08

signalword

Danger

Hazard Classifications

Carc. 2 - Lact. - Repr. 1A

Storage Class

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

wgk_germany

WGK 3

ppe

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

J J Evans et al.
Clinical chemistry, 30(1), 120-121 (1984-01-01)
Saliva would have advantages over plasma or urine for monitoring estriol during pregnancy. Specimen collection, after stimulation of flow by citric acid, is non-invasive and simple. We measured concentrations of unconjugated estriol in saliva and compared them with those in
E Diczfalusy
Journal of steroid biochemistry, 20(4B), 945-953 (1984-04-01)
The early history of estriol is reviewed with special emphasis on its isolation, identification, quantitation in tissues and body fluids and its unique biogenesis in the human feto-placental unit. The relationship to epimeric estriols and acidic estrogens and the pharmacokinetic
G P Vooijs et al.
European journal of obstetrics, gynecology, and reproductive biology, 62(1), 101-106 (1995-09-01)
To gain more insight into whether intravaginal treatment of local urogenital complaints with the mild-acting oestrogen estriol is capable of inducing proliferation of the endometrium, the results of the clinical studies that have been published over the years have been
Marcelo O Dietrich et al.
Trends in neurosciences, 36(2), 65-73 (2013-01-16)
The past 20 years witnessed an enormous leap in understanding of the central regulation of whole-body energy metabolism. Genetic tools have enabled identification of the region-specific expression of peripheral metabolic hormone receptors and have identified neuronal circuits that mediate the
Hanna Hamid et al.
Water research, 46(18), 5813-5833 (2012-09-04)
Estrogenic hormones (estrone (E1), 17β-estradiol (E2), estriol (E3), 17α-ethinylestradiol (EE2)) are the major contributor to the total estrogenicity in waterways. Presence of these compounds in biosolids is also causing concern in terms of their use as soil amendment. In comparison
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service