1222099-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1222099-34-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,2,0,9 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1222099-34:
(9*1)+(8*2)+(7*2)+(6*2)+(5*0)+(4*9)+(3*9)+(2*3)+(1*4)=124
124 % 10 = 4
So 1222099-34-4 is a valid CAS Registry Number.