167993-09-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 167993-09-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,9,9 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 167993-09:
(8*1)+(7*6)+(6*7)+(5*9)+(4*9)+(3*3)+(2*0)+(1*9)=191
191 % 10 = 1
So 167993-09-1 is a valid CAS Registry Number.