1013-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1013-55-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,1 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1013-55:
(6*1)+(5*0)+(4*1)+(3*3)+(2*5)+(1*5)=34
34 % 10 = 4
So 1013-55-4 is a valid CAS Registry Number.