1253116-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1253116-91-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,3,1,1 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1253116-91:
(9*1)+(8*2)+(7*5)+(6*3)+(5*1)+(4*1)+(3*6)+(2*9)+(1*1)=124
124 % 10 = 4
So 1253116-91-4 is a valid CAS Registry Number.