51939-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51939-77-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,9,3 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 51939-77:
(7*5)+(6*1)+(5*9)+(4*3)+(3*9)+(2*7)+(1*7)=146
146 % 10 = 6
So 51939-77-6 is a valid CAS Registry Number.