16893-11-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16893-11-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,8,9 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 16893-11:
(7*1)+(6*6)+(5*8)+(4*9)+(3*3)+(2*1)+(1*1)=131
131 % 10 = 1
So 16893-11-1 is a valid CAS Registry Number.