1289386-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1289386-17-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,3,8 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1289386-17:
(9*1)+(8*2)+(7*8)+(6*9)+(5*3)+(4*8)+(3*6)+(2*1)+(1*7)=209
209 % 10 = 9
So 1289386-17-9 is a valid CAS Registry Number.