203856-58-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203856-58-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,8,5 and 6 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 203856-58:
(8*2)+(7*0)+(6*3)+(5*8)+(4*5)+(3*6)+(2*5)+(1*8)=130
130 % 10 = 0
So 203856-58-0 is a valid CAS Registry Number.