205371-65-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205371-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,3,7 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 205371-65:
(8*2)+(7*0)+(6*5)+(5*3)+(4*7)+(3*1)+(2*6)+(1*5)=109
109 % 10 = 9
So 205371-65-9 is a valid CAS Registry Number.