51987-61-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51987-61-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,9,8 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 51987-61:
(7*5)+(6*1)+(5*9)+(4*8)+(3*7)+(2*6)+(1*1)=152
152 % 10 = 2
So 51987-61-2 is a valid CAS Registry Number.