123311-25-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123311-25-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,3,1 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 123311-25:
(8*1)+(7*2)+(6*3)+(5*3)+(4*1)+(3*1)+(2*2)+(1*5)=71
71 % 10 = 1
So 123311-25-1 is a valid CAS Registry Number.