17α-Chlorethinyl-17β-hydroxy-19-nor-androst-4-en-3-on, also known as Clenbuterol, is a synthetic β2-adrenergic agonist that was initially developed as a bronchodilator for the treatment of asthma. It is structurally similar to the natural hormone epinephrine and has a strong affinity for β2-adrenergic receptors, which leads to the relaxation of smooth muscles in the lungs, improving airflow. However, Clenbuterol has gained notoriety for its off-label use as a performance-enhancing drug and weight loss agent due to its ability to increase muscle mass and reduce body fat. It is banned by many sports organizations and is not approved for human consumption in several countries due to potential serious side effects, including heart palpitations, high blood pressure, and muscle tremors.

4642-75-5

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Basic information
1. Product Name: 17α-Chlorethinyl-17β-hydroxy-19-nor-androst-4-en-3-on
2. Synonyms:
3. CAS NO:4642-75-5
4. Molecular Formula:
5. Molecular Weight: 332.87
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: 17α-Chlorethinyl-17β-hydroxy-19-nor-androst-4-en-3-on(CAS DataBase Reference)
10. NIST Chemistry Reference: 17α-Chlorethinyl-17β-hydroxy-19-nor-androst-4-en-3-on(4642-75-5)
11. EPA Substance Registry System: 17α-Chlorethinyl-17β-hydroxy-19-nor-androst-4-en-3-on(4642-75-5)
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: 4642-75-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4642-75-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,4 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4642-75:
(6*4)+(5*6)+(4*4)+(3*2)+(2*7)+(1*5)=95
95 % 10 = 5
So 4642-75-5 is a valid CAS Registry Number.

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