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Y0000053

17α-Dihydroequilin

European Pharmacopoeia (EP) Reference Standard

Synonym(s):

α-Equilol, Estra-1,3,5(10),7-tetraene-3,17α-diol

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About This Item

Empirical Formula (Hill Notation):
C18H22O2
CAS Number:
651-55-8
Molecular Weight:
270.37
UNSPSC Code:
41116107
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

equilin

manufacturer/tradename

EDQM

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

−20°C

InChI

1S/C18H22O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3-5,10,14,16-17,19-20H,2,6-9H2,1H3

InChI key

NLLMJANWPUQQTA-UHFFFAOYSA-N

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

17α-Dihydroequilin EP Reference standard, intended for use in laboratory tests only as specifically prescribed in the European Pharmacopoeia.

Packaging

The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.

Other Notes

Sales restrictions may apply.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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S A Washburn et al.
American journal of obstetrics and gynecology, 169(2 Pt 1), 251-254 (1993-08-01)
Our purpose was to determine the effect of Premarin (conjugated estrogens) and three of its component estrogens on uterine weight and plasma cholesterol concentrations in surgically menopausal female rats. A randomized trial of Premarin and three component estrogens--estrone sulfate, 17
E Arteaga et al.
Climacteric : the journal of the International Menopause Society, 1(4), 284-289 (2002-03-23)
To determine the relative bioavailability of the estrogenic components of a generic brand of conjugated estrogens marketed in Chile in comparison to that of Conpremin (Premarin in the United States). A randomized cross-over study was conducted on 16 healthy postmenopausal
B R Bhavnani et al.
Journal of the Society for Gynecologic Investigation, 7(3), 175-183 (2000-06-24)
To compare the pharmacokinetics and relative bioavailabilities of key estrogen components of Premarin (Wyeth-Ayerst, Canada) with those of a generic conjugated estrogen preparation, C.E.S. (synthetic mixture of estrogens; ICN, Montreal, Canada) in healthy postmenopausal women. We conducted a randomized, single-dose
B R Bhavnani et al.
The Journal of clinical endocrinology and metabolism, 77(5), 1269-1274 (1993-11-01)
The constant infusion of [3H]equilin sulfate ([3H]EqS) was used to estimate the MCR of equilin sulfate (EqS) and to measure the conversion of this estrogen to equilin (Eq), equilenin (Eqn), equilenin sulfate (EqnS), 17 beta-dihydroequilin (17 beta-Eq), 17 beta-dihydroequilin sulfate
S J Foster et al.
The Journal of steroid biochemistry and molecular biology, 82(4-5), 401-411 (2003-02-19)
In on-going studies of 'classical' and ring B-unsaturated oestrogens in equine pregnancy, the products of metabolism of [2,2,4,6,6-2H(5)]-testosterone and [16,16,17-2H(3)]-5,7-androstadiene-3 beta,17 beta-diol with equine placental subcellular preparations and allantochorionic villi have been identified. Using mixtures of unlabelled and [2H]-labelled steroid
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