22534-38-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22534-38-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,5,3 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 22534-38:
(7*2)+(6*2)+(5*5)+(4*3)+(3*4)+(2*3)+(1*8)=89
89 % 10 = 9
So 22534-38-9 is a valid CAS Registry Number.