3-Hydroxy-17β-(3-pyridinylcarbonyl)oxyestra-1,3,5(10)-triene is a complex organic compound with the molecular formula C25H23NO4. It is a derivative of estradiol, a naturally occurring estrogen hormone, and features a 3-pyridinylcarbonyloxy group attached to the 17β position. This modification introduces a pyridine ring into the molecule, which can potentially alter its biological activity and pharmacological properties compared to the parent compound. The compound is of interest in medicinal chemistry and pharmacology, particularly in the development of new drugs targeting estrogen receptors, which play a crucial role in various physiological processes and diseases.
The CAS Registry Mumber 4248-63-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,4 and 8 respectively; the second part has 2 digits, 6 and 3 respectively. Calculate Digit Verification of CAS Registry Number 4248-63: (6*4)+(5*2)+(4*4)+(3*8)+(2*6)+(1*3)=89 89 % 10 = 9 So 4248-63-9 is a valid CAS Registry Number.