Reference Standard Abbreviation Company
Androstenedione AE Steraloids
Androstenedione-13C3 AE-13C3 Cerilliant
Testosterone T Sigma-Aldrich
Testosterone-13C3 T-13C3 Cerilliant
Progesterone P4 Sigma-Aldrich
Progesterone-13C3 P4-13C3 Cambridge Isotopes
17α-Hydroxyprogesterone 17OHP4 Sigma-Aldrich
17α-Hydroxyprogesterone -13C3 17OHP4-13C3 Cerilliant
Dehydroepiandrosterone DHEA Sigma
Dehydroepiandrosterone sulfate DHEAS Sigma
Aldosterone ALD Acros Organics
Aldosterone-2H4 ALD-d4 IsoSciences
Cortisone E Sigma-Aldrich
Cortisone-13C3 E-13C3 Sigma-Aldrich
Cortisol F Sigma-Aldrich
Cortisol-13C3 F-13C3 IsoSciences
Corticosterone B Sigma-Aldrich
Corticosterone-2H4 B-d4 IsoSciences
11-Deoxycortisol S Steraloids
11-Deoxycortisol-13C3 S-13C3 IsoSciences
11-Deoxycorticosterone 11DOC Steraloids
11-Deoxycorticosterone-13C3 11DOC-13C3 IsoSciences