916420-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 916420-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,6,4,2 and 0 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 916420-64:
(8*9)+(7*1)+(6*6)+(5*4)+(4*2)+(3*0)+(2*6)+(1*4)=159
159 % 10 = 9
So 916420-64-9 is a valid CAS Registry Number.