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178561-54-1

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178561-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178561-54-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,5,6 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 178561-54:
(8*1)+(7*7)+(6*8)+(5*5)+(4*6)+(3*1)+(2*5)+(1*4)=171
171 % 10 = 1
So 178561-54-1 is a valid CAS Registry Number.

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