203515-65-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203515-65-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,5,1 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 203515-65:
(8*2)+(7*0)+(6*3)+(5*5)+(4*1)+(3*5)+(2*6)+(1*5)=95
95 % 10 = 5
So 203515-65-5 is a valid CAS Registry Number.