d4-19-Norandrosterone

• CAT Number: M012080
• CAS Number: 361432-47-5
• Molecular Formula: C18H28O2
• Molecular Weight: 280.44
• Purity: ≥95%
• Synonyms: d4-19-Norandrosterone
• Storage: -20°C

d4-19-Norandrosterone（Cat No.:M012080） is a deuterated form of 19-norandrosterone, where four hydrogen atoms are replaced by deuterium, a heavy isotope of hydrogen. 19-Norandrosterone is a metabolite of nandrolone, an anabolic steroid. The deuterated version, d4-19-norandrosterone, is primarily used as an internal standard in doping control and forensic toxicology to ensure accurate and precise measurement of 19-norandrosterone in biological samples. The addition of deuterium stabilizes the molecule against breakdown and reduces isotope effects in mass spectrometric analysis, improving the reliability of testing for the presence of banned substances in athletes.