199743-06-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199743-06-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,4 and 3 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 199743-06:
(8*1)+(7*9)+(6*9)+(5*7)+(4*4)+(3*3)+(2*0)+(1*6)=191
191 % 10 = 1
So 199743-06-1 is a valid CAS Registry Number.