1605318-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1605318-04-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,5,3,1 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1605318-04:
(9*1)+(8*6)+(7*0)+(6*5)+(5*3)+(4*1)+(3*8)+(2*0)+(1*4)=134
134 % 10 = 4
So 1605318-04-4 is a valid CAS Registry Number.