804435-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 804435-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,4,4,3 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 804435-91:
(8*8)+(7*0)+(6*4)+(5*4)+(4*3)+(3*5)+(2*9)+(1*1)=154
154 % 10 = 4
So 804435-91-4 is a valid CAS Registry Number.