5226-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5226-77-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,2 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5226-77:
(6*5)+(5*2)+(4*2)+(3*6)+(2*7)+(1*7)=87
87 % 10 = 7
So 5226-77-7 is a valid CAS Registry Number.