Not all stable labeled Aldosterone molecules are the same!
Aldosterone is a steroid hormone secreted by the adrenal cortex that is implicated in hypertension, hyperaldosteronism (Conn syndrome and secondary hyperaldosteronism) and adrenal insufficiency (Addison's disease). Tests for aldosterone by mass spectroscopy are one of the most common steroid mass spectroscopy studies performed.
IsoSciences was the first to develop the deuterated mass spectroscopy standard aldosterone-[2,2,4,6,6,17,21,21-D7]. Now we have developed a new labeled form of aldosterone, aldosterone-[9,11,12,12-D4] , that places all the deuterium labels in completely non-exchangeable positions. Both standards are available from IsoSciences for these critical mass spec assays.
Aldosterone-[D4] is available in two forms - as a solid (catalog #: 11214) and as an exact concentration CertiMass™ solution: (catalog#: S11214). Aldosterone-[D7] is also available in two forms - as a solid (catalog #:5093) and as an exact concentration CertiMass™ solution: (catalog#: S5093)