139874-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139874-81-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,8,7 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139874-81:
(8*1)+(7*3)+(6*9)+(5*8)+(4*7)+(3*4)+(2*8)+(1*1)=180
180 % 10 = 0
So 139874-81-0 is a valid CAS Registry Number.