205812-29-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205812-29-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,8,1 and 2 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 205812-29:
(8*2)+(7*0)+(6*5)+(5*8)+(4*1)+(3*2)+(2*2)+(1*9)=109
109 % 10 = 9
So 205812-29-9 is a valid CAS Registry Number.