42204-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42204-83-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,2,0 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42204-83:
(7*4)+(6*2)+(5*2)+(4*0)+(3*4)+(2*8)+(1*3)=81
81 % 10 = 1
So 42204-83-1 is a valid CAS Registry Number.