409317-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 409317-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,9,3,1 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 409317-77:
(8*4)+(7*0)+(6*9)+(5*3)+(4*1)+(3*7)+(2*7)+(1*7)=147
147 % 10 = 7
So 409317-77-7 is a valid CAS Registry Number.