640-73-3 Usage
General Description
(3beta)-3-hydroxypregn-5-ene-11,20-dione, also known as 3beta-hydroxy-5-pregnen-20-one, is a steroid hormone and a precursor of several other important hormones in the body, including cortisol, testosterone, and estrogen. It is produced naturally in the adrenal glands, gonads, and placenta, and plays a crucial role in regulating various physiological processes such as metabolism, immune function, and sexual development. In addition, it has been found to have anti-inflammatory and immunosuppressive effects, and is used in synthetic form as a medication for conditions such as rheumatoid arthritis and autoimmune diseases. The chemical structure of 3beta-hydroxy-5-pregnen-20-one consists of a steroid backbone with a hydroxyl group at the 3rd carbon position, a double bond between the 5th and 6th carbon positions, and a ketone group at the 11th and 20th carbon positions.
Check Digit Verification of cas no
The CAS Registry Mumber 640-73-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 640-73:
(5*6)+(4*4)+(3*0)+(2*7)+(1*3)=63
63 % 10 = 3
So 640-73-3 is a valid CAS Registry Number.
