189266-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189266-69-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,6 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 189266-69:
(8*1)+(7*8)+(6*9)+(5*2)+(4*6)+(3*6)+(2*6)+(1*9)=191
191 % 10 = 1
So 189266-69-1 is a valid CAS Registry Number.