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157442-52-9

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157442-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157442-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,4,4 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 157442-52:
(8*1)+(7*5)+(6*7)+(5*4)+(4*4)+(3*2)+(2*5)+(1*2)=139
139 % 10 = 9
So 157442-52-9 is a valid CAS Registry Number.

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