131890-53-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131890-53-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,8,9 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131890-53:
(8*1)+(7*3)+(6*1)+(5*8)+(4*9)+(3*0)+(2*5)+(1*3)=124
124 % 10 = 4
So 131890-53-4 is a valid CAS Registry Number.