Skip to Content
MilliporeSigma
All Photos(4)

Documents

N4128

Sigma-Aldrich

19-Norethindrone

≥98%, powder

Synonym(s):

17α-Ethynyl-19-nortestosterone, 17-Hydroxy-19-nor-17α-4-pregnen-20-yn-3-one, 17α-Ethynyl-17β-hydroxy-19-nor-4-androsten-3-one, 19-Nor-17α-ethynyl-4-androsten-17β-ol-3-one, 19-Norethisterone

Sign Into View Organizational & Contract Pricing
All Photos(4)

About This Item

Empirical Formula (Hill Notation):
C20H26O2
CAS Number:
68-22-4
Molecular Weight:
298.42
Beilstein/REAXYS Number:
1915671
EC Number:
200-681-6
MDL number:
MFCD00067596
UNSPSC Code:
12352211
PubChem Substance ID:
24897669
NACRES:
NA.77

biological source

synthetic (organic)

Quality Level

200

sterility

non-sterile

assay

≥98%

form

powder

storage condition

protect from light

color

white to off-white

mp

205-206 °C (lit.)

solubility

chloroform: ≥50 mg/mL, clear, colorless

shipped in

ambient

storage temp.

room temp

SMILES string

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

InChI

1S/C20H26O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h1,12,15-18,22H,4-11H2,2H3/t15-,16+,17+,18-,19-,20-/m0/s1

InChI key

VIKNJXKGJWUCNN-XGXHKTLJSA-N

Gene Information

human ... AR(367) , PGR(5241)
rat ... Ar(24208)

Looking for similar products? Visit Product Comparison Guide

Biochem/physiol Actions

19-norethindrone is an oral contraceptive involved in the inhibition of cytosolic sulfotransferases (SULT).

pictograms

Health hazardEnvironment
GHS08,GHS09

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - 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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

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

Visit the Document Library

Customers Also Viewed

Slide 1 of 4

1 of 4

Flutamide

Sigma-Aldrich

F9397

Flutamide

≥98% (HPLC), powder

Sigma-Aldrich

N7634

Nifedipine

Progesterone powder, BioReagent, suitable for cell culture

Sigma-Aldrich

P8783

Progesterone

Progesterone ≥99%

Sigma-Aldrich

P0130

Progesterone

Susan M Fetherston et al.
The Journal of antimicrobial chemotherapy, 68(2), 394-403 (2012-10-31)
The non-nucleoside reverse transcriptase inhibitor MC1220 has potent in vitro activity against HIV type 1 (HIV-1). A liposome gel formulation of MC1220 has previously been reported to partially protect rhesus macaques against vaginal challenge with a simian HIV (SHIV). Here
Moa Säfholm et al.
Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 369(1656) (2014-11-19)
Most amphibians breed in water, including the terrestrial species, and may therefore be exposed to water-borne pharmaceuticals during critical phases of the reproductive cycle, i.e. sex differentiation and gamete maturation. The objectives of this paper were to (i) review available
Chelsea B Polis et al.
The Lancet. Infectious diseases, 13(9), 797-808 (2013-07-23)
Whether or not the use of hormonal contraception affects risk of HIV acquisition is an important question for public health. We did a systematic review, searching PubMed and Embase, aiming to explore the possibility of an association between various forms
Derin J Cobia et al.
Schizophrenia research, 139(1-3), 1-6 (2012-06-01)
Cortical abnormalities are considered a neurobiological characteristic of schizophrenia. However, the pattern of such deficits as they progress over the illness remains poorly understood. The goal of this project was to assess the progression of cortical thinning in frontal and
F Z Stanczyk et al.
Contraception, 42(1), 67-96 (1990-07-01)
There is limited information on the metabolism of levonorgestrel, norethindrone and structurally related contraceptive steroids. Both levonorgestrel and norethindrone undergo extensive reduction of the alpha, beta-unsaturated ketone in ring A. Levonorgestrel also undergoes hydroxylation at carbons 2 and 16. The
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