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203180-40-9

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203180-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203180-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,1,8 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 203180-40:
(8*2)+(7*0)+(6*3)+(5*1)+(4*8)+(3*0)+(2*4)+(1*0)=79
79 % 10 = 9
So 203180-40-9 is a valid CAS Registry Number.

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