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840510-34-1

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840510-34-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 840510-34-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,0,5,1 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 840510-34:
(8*8)+(7*4)+(6*0)+(5*5)+(4*1)+(3*0)+(2*3)+(1*4)=131
131 % 10 = 1
So 840510-34-1 is a valid CAS Registry Number.

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