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188257-69-4

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188257-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188257-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,2,5 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 188257-69:
(8*1)+(7*8)+(6*8)+(5*2)+(4*5)+(3*7)+(2*6)+(1*9)=184
184 % 10 = 4
So 188257-69-4 is a valid CAS Registry Number.

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