65401-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65401-77-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,4,0 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 65401-77:
(7*6)+(6*5)+(5*4)+(4*0)+(3*1)+(2*7)+(1*7)=116
116 % 10 = 6
So 65401-77-6 is a valid CAS Registry Number.