253665-03-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 253665-03-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,6,6 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 253665-03:
(8*2)+(7*5)+(6*3)+(5*6)+(4*6)+(3*5)+(2*0)+(1*3)=141
141 % 10 = 1
So 253665-03-1 is a valid CAS Registry Number.