201670-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201670-09-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,6,7 and 0 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 201670-09:
(8*2)+(7*0)+(6*1)+(5*6)+(4*7)+(3*0)+(2*0)+(1*9)=89
89 % 10 = 9
So 201670-09-9 is a valid CAS Registry Number.