205124-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205124-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,1,2 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 205124-18:
(8*2)+(7*0)+(6*5)+(5*1)+(4*2)+(3*4)+(2*1)+(1*8)=81
81 % 10 = 1
So 205124-18-1 is a valid CAS Registry Number.