125657-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 125657-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,6,5 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 125657-77:
(8*1)+(7*2)+(6*5)+(5*6)+(4*5)+(3*7)+(2*7)+(1*7)=144
144 % 10 = 4
So 125657-77-4 is a valid CAS Registry Number.