205104-97-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205104-97-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,1,0 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 205104-97:
(8*2)+(7*0)+(6*5)+(5*1)+(4*0)+(3*4)+(2*9)+(1*7)=88
88 % 10 = 8
So 205104-97-8 is a valid CAS Registry Number.