135203-03-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135203-03-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,2,0 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 135203-03:
(8*1)+(7*3)+(6*5)+(5*2)+(4*0)+(3*3)+(2*0)+(1*3)=81
81 % 10 = 1
So 135203-03-1 is a valid CAS Registry Number.