916804-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 916804-73-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,6,8,0 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 916804-73:
(8*9)+(7*1)+(6*6)+(5*8)+(4*0)+(3*4)+(2*7)+(1*3)=184
184 % 10 = 4
So 916804-73-4 is a valid CAS Registry Number.