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1565845-89-7

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1565845-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1565845-89-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,6,5,8,4 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1565845-89:
(9*1)+(8*5)+(7*6)+(6*5)+(5*8)+(4*4)+(3*5)+(2*8)+(1*9)=217
217 % 10 = 7
So 1565845-89-7 is a valid CAS Registry Number.

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