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199723-86-9

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199723-86-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199723-86-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,2 and 3 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 199723-86:
(8*1)+(7*9)+(6*9)+(5*7)+(4*2)+(3*3)+(2*8)+(1*6)=199
199 % 10 = 9
So 199723-86-9 is a valid CAS Registry Number.

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