Organic elemental analysis: A new universal approach to authenticity/quality control of pharmaceuticals was written by Revelsky, Igor A.;Chernetsova, Elena S.;Luzyanin, Boris P.;Fedoseeva, Marina V.;Glazkov, Igor N.;Revelsky, Alexander I.. And the article was included in Drug Testing and Analysis in 2010.COA of Formula: C26H26N2O2S This article mentions the following:
Organic elemental anal. (OEA) is an alternative, fast, and relatively inexpensive method for active pharmaceutical ingredient content determination As a result of our research, it was shown that OEA can be used for fast quality control of various pharmaceutical preparations (tablets, capsules, powders, and solutions). It can be concluded that the OEA approach enables fast and accurate determination of active ingredient content and eliminates the need for the use of the reference samples for each active pharmaceutical ingredient. In the experiment, the researchers used many compounds, for example, 2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5COA of Formula: C26H26N2O2S).
2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5) belongs to benzothiophene derivatives. Benzothiophene is a fused ring compound of thiophene ring and benzene ring, which is an important class of heterocycles with advantageous structures. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, and sertaconazole, and also BTCP.COA of Formula: C26H26N2O2S
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem