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3α-Tosyloxy-17,20;20,21-bis-methylendioxy-5β-pregnan is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

19458-50-5

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19458-50-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19458-50-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,4,5 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 19458-50:
(7*1)+(6*9)+(5*4)+(4*5)+(3*8)+(2*5)+(1*0)=135
135 % 10 = 5
So 19458-50-5 is a valid CAS Registry Number.

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