91906-80-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91906-80-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,0 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91906-80:
(7*9)+(6*1)+(5*9)+(4*0)+(3*6)+(2*8)+(1*0)=148
148 % 10 = 8
So 91906-80-8 is a valid CAS Registry Number.