526-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 526-77-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 526-77:
(5*5)+(4*2)+(3*6)+(2*7)+(1*7)=72
72 % 10 = 2
So 526-77-2 is a valid CAS Registry Number.