17,17-Ethylenedioxyestra-1,3,5(10),9(11)tetraen-3-ol, also known as ethinylestradiol, is a synthetic estrogen and a pharmaceutical drug. It is primarily used as a component in combined oral contraceptive pills to prevent pregnancy. Ethinylestradiol works by inhibiting ovulation, altering the cervical mucus to make it less conducive to sperm survival, and thinning the endometrial lining to prevent implantation of a fertilized egg. 17,17-ethylenedioxyestra-1,3,5⁽¹⁰⁾,9⁽¹¹⁾tetraen-3-ol is a derivative of the naturally occurring hormone estradiol, with the addition of an ethinyl group and a 17,17-ethylenedioxy bridge, which enhances its potency and effectiveness. Ethinylestradiol is a key component in many birth control formulations due to its ability to provide reliable contraception when used as directed.

5173-47-7

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Basic information
1. Product Name: 17,17-ethylenedioxyestra-1,3,5⁽¹⁰⁾,9⁽¹¹⁾tetraen-3-ol
2. Synonyms: 17,17-ethylenedioxyestra-1,3,5⁽¹⁰⁾,9⁽¹¹⁾tetraen-3-ol
3. CAS NO:5173-47-7
4. Molecular Formula:
5. Molecular Weight: 312.409
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 17,17-ethylenedioxyestra-1,3,5⁽¹⁰⁾,9⁽¹¹⁾tetraen-3-ol(CAS DataBase Reference)
10. NIST Chemistry Reference: 17,17-ethylenedioxyestra-1,3,5⁽¹⁰⁾,9⁽¹¹⁾tetraen-3-ol(5173-47-7)
11. EPA Substance Registry System: 17,17-ethylenedioxyestra-1,3,5⁽¹⁰⁾,9⁽¹¹⁾tetraen-3-ol(5173-47-7)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 5173-47-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 5173-47-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,7 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5173-47:
(6*5)+(5*1)+(4*7)+(3*3)+(2*4)+(1*7)=87
87 % 10 = 7
So 5173-47-7 is a valid CAS Registry Number.

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