13554-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13554-83-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,5 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13554-83:
(7*1)+(6*3)+(5*5)+(4*5)+(3*4)+(2*8)+(1*3)=101
101 % 10 = 1
So 13554-83-1 is a valid CAS Registry Number.