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157664-46-5

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157664-46-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157664-46-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,6,6 and 4 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 157664-46:
(8*1)+(7*5)+(6*7)+(5*6)+(4*6)+(3*4)+(2*4)+(1*6)=165
165 % 10 = 5
So 157664-46-5 is a valid CAS Registry Number.

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