187151-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187151-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,1,5 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 187151-31:
(8*1)+(7*8)+(6*7)+(5*1)+(4*5)+(3*1)+(2*3)+(1*1)=141
141 % 10 = 1
So 187151-31-1 is a valid CAS Registry Number.