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16781-53-6

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16781-53-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16781-53-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,7,8 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 16781-53:
(7*1)+(6*6)+(5*7)+(4*8)+(3*1)+(2*5)+(1*3)=126
126 % 10 = 6
So 16781-53-6 is a valid CAS Registry Number.

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