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3-methoxy-19-norpregna-1,3,5(10)-triene-20-yn-17α-ol is a complex organic compound belonging to the steroid family, specifically a derivative of pregnane. It features a unique structure with a triple bond at the 20th carbon position and a hydroxyl group at the 17α position. The molecule also contains a methoxy group at the 3rd carbon, which contributes to its chemical properties. 3-methoxy-19-norpregna-1,3,5(10)-triene-20-yn-17α-ol is characterized by the absence of a carbon atom at the 19th position, hence the term "nor" in its name, indicating a nor-steroid. It is synthesized for various applications, including pharmaceutical and chemical research, and is known for its potential biological activities. Due to its specific structure, it can interact with certain receptors in the body, making it a subject of interest in the development of drugs targeting hormonal systems.

4502-08-3

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4502-08-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4502-08-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,0 and 2 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4502-08:
(6*4)+(5*5)+(4*0)+(3*2)+(2*0)+(1*8)=63
63 % 10 = 3
So 4502-08-3 is a valid CAS Registry Number.

4502-08-3Upstream product

4502-08-3Relevant academic research and scientific papers

17β-Ethynyl-3,17α-estradiol and derivatives thereof

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, (2008/06/13)

17β-ethynyl-3,17α-estradiol and derivatives thereof are prepared by epimerization of 17-acyl esters of 17α-ethynyl-3,17β-estradiol 3-ethers. 17α-ethynyl-3,17α-estradiol and its derivatives are active as post-coital antifertility agents and inhibit the growth of or reduce the size of the prostate gland and the seminal vesicle.

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