13155-44-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13155-44-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,1,5 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 13155-44:
(7*1)+(6*3)+(5*1)+(4*5)+(3*5)+(2*4)+(1*4)=77
77 % 10 = 7
So 13155-44-7 is a valid CAS Registry Number.