22541-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22541-69-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,5,4 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 22541-69:
(7*2)+(6*2)+(5*5)+(4*4)+(3*1)+(2*6)+(1*9)=91
91 % 10 = 1
So 22541-69-1 is a valid CAS Registry Number.