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17425-57-9

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17425-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17425-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,4,2 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 17425-57:
(7*1)+(6*7)+(5*4)+(4*2)+(3*5)+(2*5)+(1*7)=109
109 % 10 = 9
So 17425-57-9 is a valid CAS Registry Number.

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