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6611-91-2

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6611-91-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6611-91-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,1 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6611-91:
(6*6)+(5*6)+(4*1)+(3*1)+(2*9)+(1*1)=92
92 % 10 = 2
So 6611-91-2 is a valid CAS Registry Number.

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