136253-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136253-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,2,5 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 136253-31:
(8*1)+(7*3)+(6*6)+(5*2)+(4*5)+(3*3)+(2*3)+(1*1)=111
111 % 10 = 1
So 136253-31-1 is a valid CAS Registry Number.