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(Z)-des-A,B-8β-[(tert-butyldimethylsilyl)oxy]pregn-17(20)-ene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

502687-68-5

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502687-68-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 502687-68-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,2,6,8 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 502687-68:
(8*5)+(7*0)+(6*2)+(5*6)+(4*8)+(3*7)+(2*6)+(1*8)=155
155 % 10 = 5
So 502687-68-5 is a valid CAS Registry Number.

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