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183994-91-4

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183994-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 183994-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,9,9 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 183994-91:
(8*1)+(7*8)+(6*3)+(5*9)+(4*9)+(3*4)+(2*9)+(1*1)=194
194 % 10 = 4
So 183994-91-4 is a valid CAS Registry Number.

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