223511-88-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223511-88-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,5,1 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 223511-88:
(8*2)+(7*2)+(6*3)+(5*5)+(4*1)+(3*1)+(2*8)+(1*8)=104
104 % 10 = 4
So 223511-88-4 is a valid CAS Registry Number.