17β-hydroxy-1,4-androstadiene-3,11-dione, also known as 17β-hydroxy-1,4-estradiene-3,11-dione or 17β-hydroxy-4-estren-3,11-dione, is a naturally occurring steroid hormone with the molecular formula C19H26O3. It is a derivative of androstenedione, which is a key intermediate in the biosynthesis of various sex hormones, including testosterone and estrogen. 17β-hydroxy-1,4-androstadiene-3,11-dione is characterized by the presence of a hydroxyl group at the 17β position, a double bond between carbons 1 and 4, and carbonyl groups at the 3 and 11 positions. It plays a significant role in the endocrine system and is involved in various physiological processes, such as the regulation of the menstrual cycle and the development of secondary sexual characteristics. Due to its hormonal activity, 17β-hydroxy-1,4-androstadiene-3,11-dione has been studied for its potential therapeutic applications in conditions related to hormone imbalances.
The CAS Registry Mumber 5885-11-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,8,8 and 5 respectively; the second part has 2 digits, 1 and 1 respectively. Calculate Digit Verification of CAS Registry Number 5885-11: (6*5)+(5*8)+(4*8)+(3*5)+(2*1)+(1*1)=120 120 % 10 = 0 So 5885-11-0 is a valid CAS Registry Number.