209223-88-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209223-88-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,2,2 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 209223-88:
(8*2)+(7*0)+(6*9)+(5*2)+(4*2)+(3*3)+(2*8)+(1*8)=121
121 % 10 = 1
So 209223-88-1 is a valid CAS Registry Number.