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857549-42-9

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857549-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 857549-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,4 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 857549-42:
(8*8)+(7*5)+(6*7)+(5*5)+(4*4)+(3*9)+(2*4)+(1*2)=219
219 % 10 = 9
So 857549-42-9 is a valid CAS Registry Number.

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