85203-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 85203-09-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,2,0 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 85203-09:
(7*8)+(6*5)+(5*2)+(4*0)+(3*3)+(2*0)+(1*9)=114
114 % 10 = 4
So 85203-09-4 is a valid CAS Registry Number.