193819-85-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 193819-85-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,8,1 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 193819-85:
(8*1)+(7*9)+(6*3)+(5*8)+(4*1)+(3*9)+(2*8)+(1*5)=181
181 % 10 = 1
So 193819-85-1 is a valid CAS Registry Number.