3911-59-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3911-59-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,1 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3911-59:
(6*3)+(5*9)+(4*1)+(3*1)+(2*5)+(1*9)=89
89 % 10 = 9
So 3911-59-9 is a valid CAS Registry Number.