91420-36-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91420-36-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,4,2 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 91420-36:
(7*9)+(6*1)+(5*4)+(4*2)+(3*0)+(2*3)+(1*6)=109
109 % 10 = 9
So 91420-36-9 is a valid CAS Registry Number.