Ethisterone-¹³C₂  (Synonyms: Pregneninolone-¹³C₂; 17α-Ethynyltestosterone-¹³C₂)

Ethisterone-¹³C₂ (Pregneninolone-¹³C₂) is the ¹³C-labeled Ethisterone (HY-B0487). Ethisterone (Pregneninolone; 17α-Ethynyltestosterone) is a synthetic steroidal estrogen, is an orally active steroidal contraceptive agent. Ethisterone has almost no effect on the phagocytic activity of the reticuloendothelial system in male guinea pigs, while in utero exposure can induce abnormalities in the urogenital system of offspring.

1. This compound can be used as a tracer.
2. This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

314.43

C₁₉¹³C₂H₂₈O₂

434-03-7

O=C1CC[C@]2(C(CC[C@@]3([C@@]2(CC[C@]4([C@]3(CC[C@@]4(O)[13C]#[13CH])[H])C)[H])[H])=C1)C

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.