193945-98-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 193945-98-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,9,4 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 193945-98:
(8*1)+(7*9)+(6*3)+(5*9)+(4*4)+(3*5)+(2*9)+(1*8)=191
191 % 10 = 1
So 193945-98-1 is a valid CAS Registry Number.