658044-13-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 658044-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,8,0,4 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 658044-13:
(8*6)+(7*5)+(6*8)+(5*0)+(4*4)+(3*4)+(2*1)+(1*3)=164
164 % 10 = 4
So 658044-13-4 is a valid CAS Registry Number.