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78899-69-1

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78899-69-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78899-69-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,9 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78899-69:
(7*7)+(6*8)+(5*8)+(4*9)+(3*9)+(2*6)+(1*9)=221
221 % 10 = 1
So 78899-69-1 is a valid CAS Registry Number.

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