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217640-09-0

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217640-09-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217640-09-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,6,4 and 0 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 217640-09:
(8*2)+(7*1)+(6*7)+(5*6)+(4*4)+(3*0)+(2*0)+(1*9)=120
120 % 10 = 0
So 217640-09-0 is a valid CAS Registry Number.

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