Testosterone Impurity 4

Complete NMR assignment and absolute configuration of k4610422, a norditerpenoid inhibitor of testosterone-​5α-​reductase originally from Streptosporangium: rediscovery from a thermophilic Actinomadura
By Akiyama, Hirofumi; Oku, Naoya; Harunari, Enjuro; Panbangred, Watanalai; Igarashi, Yasuhiro
From Journal of Antibiotics (2020), 73(1), 60-65
 
Spectrophotometric and chromatographic strategies for exploring of the nanostructure pharmaceutical formulations which contains testosterone undecanoate
By Butnariu, Monica; Sarac, Ioan; Samfira, Ionel
From Scientific Reports (2020), Ahead of Print.
 

Testosterone Impurity 4 is chemically (8R,9S,10R,13S,14S)-10,13-dimethyl-1,4,7,8,9,10,11,12,13,14,15,16-dodecahydro-3H-cyclopenta[a]phenanthrene-3,17(2H)-dione. Testosterone Impurity 4 is supplied with detailed characterization data compliant with regulatory guideline. Testosterone Impurity 4 can be used for the analytical method development, method validation (AMV), Quality Controlled (QC) application for Abbreviated New Drug Application (ANDA) or during commercial production of Testosterone.

The product can be used as reference standards and further traceability against pharmacopeial standards (USP or EP) can be provided based on feasibility. SynZeal products are for analytical purpose only and not for human use.