3-Hydroxy-3,5-androstadien-17-one, also known as 3-hydroxy-5-androsten-17-one or simply 3-hydroxy-5-androstene-17-one, is a naturally occurring steroid hormone with the molecular formula C19H28O2. It is a derivative of androst-5-ene, featuring a hydroxyl group at the 3-position and a ketone group at the 17-position. 3-hydroxy-3,5-androstadien-17-one is an important intermediate in the biosynthesis of various sex hormones, including testosterone and other androgens. It plays a crucial role in the human endocrine system, influencing the development of male characteristics and regulating various physiological processes. Due to its structural properties, 3-hydroxy-3,5-androstadien-17-one can be further modified to produce other steroidal compounds with different biological activities, making it a significant molecule in the field of pharmaceuticals and endocrinology.
The CAS Registry Mumber 1229-13-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,2 and 9 respectively; the second part has 2 digits, 1 and 3 respectively. Calculate Digit Verification of CAS Registry Number 1229-13: (6*1)+(5*2)+(4*2)+(3*9)+(2*1)+(1*3)=56 56 % 10 = 6 So 1229-13-6 is a valid CAS Registry Number.