1231930-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1231930-22-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,1,9,3 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1231930-22:
(9*1)+(8*2)+(7*3)+(6*1)+(5*9)+(4*3)+(3*0)+(2*2)+(1*2)=115
115 % 10 = 5
So 1231930-22-5 is a valid CAS Registry Number.