A deuterium labeled 17α-hydroxyprogesterone for use as an internal standard utilized in the measurement of 17α-hydroxyprogesterone through GC- or LC-MS methods.

Cyanine dyes are molecules containing polymethine bridge between two nitrogen atoms with a delocalized charge: Due to their structure, cyanines have outstandingly high extinction coefficients often exceeding 100,000 Lmol-1cm-1. Different substituents allow to control properties of the chromophore, such as absorbance wavelength, photostability, and fluorescence. For example, absorbance and fluorescence wavelength can be controlled by…

The applications of fluorescence in scientific research are vast and varied. By employing fluorescent dyes like Alexa Fluor, researchers can explore multiple facets of biological systems. Some significant applications include: AF fluorescent dyes from Lumiprobe supplied by HyperCyte: Cat No., Description 1821-10rxn, AF 488 antibody labeling kit, 10 rxn 1821-1rxn, AF 488 antibody labeling kit,…