91558-35-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91558-35-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,5 and 8 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91558-35:
(7*9)+(6*1)+(5*5)+(4*5)+(3*8)+(2*3)+(1*5)=149
149 % 10 = 9
So 91558-35-9 is a valid CAS Registry Number.