206535-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 206535-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,5,3 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 206535-91:
(8*2)+(7*0)+(6*6)+(5*5)+(4*3)+(3*5)+(2*9)+(1*1)=123
123 % 10 = 3
So 206535-91-3 is a valid CAS Registry Number.