Norandrostenedione


Name:Norandrostenedione 
EINECS:211-995-8 
Molecular Formula:C18H24O2 
CAS Registry Number:734-32-7 
Synonyms:19-Norandrostenedione;19-Nor-4-androstenedione 
Molecular Weight:272.38 
Density:1.13 g/cm3 
Boiling Point:433.4 °C at 760 mmHg 
Melting Point:169-172°C 
Flash Point:433.4 °C at 760 mmHg 
Application:Norethindrone intermediate 
Standard:Enterprise standard 
Assay:98% 

19-Norandrostenedione (4-estrene-3,17-dione, NOR) is a precursor of the anabolic steroid nandrolone. Until 2005 19-Norandrostenedione was available without prescription in United States, where it was marketed as a prohormone, but it is now classified as a Schedule III drug. It is also banned from use in many sports, including the Olympic Games, under the World Anti-Doping Code.19-Norandrostenedione is readily metabolized to nandrolone after oral administration, but its potency to transactivate the androgen receptor dependent reporter gene expression is 10 times lower as compared to dihydrotestosterone (DHT). 

Scientific studies have shown that oral administration of 19-norandrostenedione is "a very ineffective strategy for stimulating skeletal muscle mass increases but may be associated with side effects". 

In vivo experiments in castrated rats demonstrated that subcutaneous treatment with 19-norandrostenedione resulted only in a stimulation of the weight of the levator ani muscle, while the prostate and seminal vesicle weights remained completely unaffected. In contrast to its metabolite nandrolone, 19-norandrostenedione highly selectively stimulates the growth of the skeletal muscles but has only weak androgenic properties. 

In the early 2000s, contamination of androstenedione products with traces of 19-norandrostenedione caused false positives for doping tests for nandrolone because 19-norandrosterone is a metabolite of both nandrolone and 19-norandrostenedione. In a randomized controlled trial trace contamination of androstenedione with 19-norandrostenedione was sufficient for users of androstendione to test positive for nandroloneThis detail became less relevant after 19-norandrostenedione and androstenedione were banned by major sporting bodies. 




Send product request

To: Wuhan Yuancheng Gongchuang Tech Co.,Ltd
Your E-mail:
Message text:


Send to other suppliers

Other supplier products

Dihydroboldenone Product Name:1-Testosterone,Dihydroboldenone Alias:DHB,1-testosterone cypionate CAS NO.:65-06-5 Purity:99% Molecular Formular:C...
CAS 2322-77-2 Methoxydienone Product Name:Methoxydienone CAS: 2322-77-2 EINECS: 219-034-4 MF: C20H28O2 MW: 300.44 Assay: 90% min. Packing: 1kg net...
Alarelin Acetate Product Name:Alarelin Acetate Alias : LHRH-A, Ala(6)-gly(10)-gnrh, 6-D-Ala-10-D-gly-LHRH-ethylamide Sequence:Glp-His-Trp-Ser-Tyr-DAla-Leu...
CAS 55-06-1 Liothyronine sodium T3 CAS 55-06-1 Liothyronine sodium T3 Product Name:T3,Cytomel Alias: L-thyronine sodium salt,Cytomel T3 CAS NO: 55-06-1 Einecs No:...
CAS 58-22-0 Testosterone CAS 58-22-0 Testosterone Product Name:Testosterone Base Alias:Primoteston CAS: 58-22-0 EINECS: 200-370-5 Molecular formula...
All supplier products

Same products

1232пиари Seller: VseParki
1232пиари Seller: VseParki
3D Engraved Jade Glass Memento Award For Souvenirs
3D Engraved Jade Glass Memento Award For Souvenirs Seller: Yiwu Shining Crystal Import and Export Co.,ltd Yiwu Shining Crystal Import & Export Co.,Ltd is a best China blank crystal glass memento trophy m...
Personalized Glass Curvy Award With Black Base
Personalized Glass Curvy Award With Black Base Seller: Yiwu Shining Crystal Import and Export Co.,ltd Yiwu Shining Crystal Import & Export Co.,Ltd is a best China k9 blank crystal glass curvy trophy ...
phytase crude
phytase crude Seller: Wuhan Yuancheng Group phytase crude product Name: phytase crude Synonyms: Phytase CAS Registry Number: 37288-11-2 Assa...