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Merck
CN

46272

Ethisterone

VETRANAL®, analytical standard

Synonym(s):

17α-Ethynyltestosterone, 17β-Hydroxy-4,17α-pregnen-20-yn-3-one, 4,17α-Pregnen-17β-ol-20-yn-3-one

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About This Item

Empirical Formula (Hill Notation):
C21H28O2
CAS Number:
434-03-7
Molecular Weight:
312.45
EC Number:
207-096-5
UNSPSC Code:
41116107
PubChem Substance ID:
329757117
Beilstein/REAXYS Number:
1889895
MDL number:
MFCD00003656

Key Documents

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InChI key

CHNXZKVNWQUJIB-CEGNMAFCSA-N

InChI

1S/C21H28O2/c1-4-21(23)12-9-18-16-6-5-14-13-15(22)7-10-19(14,2)17(16)8-11-20(18,21)3/h1,13,16-18,23H,5-12H2,2-3H3/t16-,17+,18+,19+,20+,21+/m1/s1

SMILES string

C[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2CC[C@@]4(C)[C@H]3CC[C@@]4(O)C#C

grade

analytical standard

product line

VETRANAL®

shelf life

limited shelf life, expiry date on the label

drug control

regulated under CDSA - not available from Sigma-Aldrich Canada

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

mp

263-269 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

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Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Legal Information

VETRANAL is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Health hazardEnvironment
GHS08,GHS09

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Repr. 1A

Storage Class

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

wgk

WGK 3

ppe

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

Regulatory Information

涉药品监管产品
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M Iqbal Choudhary et al.
Steroids, 70(12), 798-802 (2005-08-02)
The microbial transformation of the 17alpha-ethynyl-17beta-hydroxyandrost-4-en-3-one (1) (ethisterone) and 17alpha-ethyl-17beta-hydroxyandrost-4-en-3-one (2) by the fungi Cephalosporium aphidicola and Cunninghamella elegans were investigated. Incubation of compound 1 with C. aphidicola afforded oxidized derivative, 17alpha-ethynyl-17beta-hydroxyandrosta-1,4-dien-3-one (3), while with C. elegans afforded a new
How should we advise patients about the contraceptive patch, given the FDA warning?
Holly L Thacker et al.
Cleveland Clinic journal of medicine, 73(1), 45-47 (2006-02-01)
Nondaily hormonal contraception: establishing a fit between product characteristics and patient preferences.
Jeffrey P Levine
The Journal of family practice, 53(11), 904-913 (2004-11-06)
The Evra (ethinyl estradiol/norelgestromin) contraceptive patch: estrogen exposure concerns.
Eric Wooltorton
CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 174(2), 164-165 (2005-12-22)
Hui Zhang et al.
Environmental toxicology, 24(5), 484-491 (2008-11-19)
The study method on combined effects of environmental contaminant mixture and ecological risk assessment was discussed. Batch tests were conducted to assess the in vivo potency of binary mixtures of estrogens using plasma vitellogenin concentrations in male crucian carp as
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