183231-05-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183231-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,2,3 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 183231-05:
(8*1)+(7*8)+(6*3)+(5*2)+(4*3)+(3*1)+(2*0)+(1*5)=112
112 % 10 = 2
So 183231-05-2 is a valid CAS Registry Number.