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17167-21-4

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17167-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17167-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,1,6 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17167-21:
(7*1)+(6*7)+(5*1)+(4*6)+(3*7)+(2*2)+(1*1)=104
104 % 10 = 4
So 17167-21-4 is a valid CAS Registry Number.

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