1718-94-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1718-94-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,1 and 8 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1718-94:
(6*1)+(5*7)+(4*1)+(3*8)+(2*9)+(1*4)=91
91 % 10 = 1
So 1718-94-1 is a valid CAS Registry Number.