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157811-87-5

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157811-87-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157811-87-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,1 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 157811-87:
(8*1)+(7*5)+(6*7)+(5*8)+(4*1)+(3*1)+(2*8)+(1*7)=155
155 % 10 = 5
So 157811-87-5 is a valid CAS Registry Number.

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