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17α-Ethynyl-3-methyl-estra-1,3,5(10)-trien-17β-ol, also known as ethynylestradiol, is a synthetic estrogen and a component of many combined oral contraceptives. It is a derivative of the naturally occurring hormone estradiol, with a 17α-ethynyl group and a 3-methyl group, which enhances its potency and effectiveness. This chemical has a significant impact on the human body, as it mimics the effects of estrogen, influencing the menstrual cycle, pregnancy, and other physiological processes. Ethynylestradiol is widely used in birth control pills due to its ability to inhibit ovulation, alter the cervical mucus, and thin the endometrium, thereby preventing pregnancy. However, it is important to note that long-term use of this chemical may have potential side effects and health risks, which should be considered and discussed with a healthcare professional.

2529-55-7

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2529-55-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2529-55-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,2 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2529-55:
(6*2)+(5*5)+(4*2)+(3*9)+(2*5)+(1*5)=87
87 % 10 = 7
So 2529-55-7 is a valid CAS Registry Number.

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