1604034-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1604034-83-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,4,0,3 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1604034-83:
(9*1)+(8*6)+(7*0)+(6*4)+(5*0)+(4*3)+(3*4)+(2*8)+(1*3)=124
124 % 10 = 4
So 1604034-83-4 is a valid CAS Registry Number.