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102557-83-5

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102557-83-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 102557-83-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,5,5 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 102557-83:
(8*1)+(7*0)+(6*2)+(5*5)+(4*5)+(3*7)+(2*8)+(1*3)=105
105 % 10 = 5
So 102557-83-5 is a valid CAS Registry Number.

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