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55568-91-7

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55568-91-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55568-91-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,5,6 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55568-91:
(7*5)+(6*5)+(5*5)+(4*6)+(3*8)+(2*9)+(1*1)=157
157 % 10 = 7
So 55568-91-7 is a valid CAS Registry Number.

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