90039-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90039-83-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,0,3 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90039-83:
(7*9)+(6*0)+(5*0)+(4*3)+(3*9)+(2*8)+(1*3)=121
121 % 10 = 1
So 90039-83-1 is a valid CAS Registry Number.