205748-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205748-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,7,4 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 205748-18:
(8*2)+(7*0)+(6*5)+(5*7)+(4*4)+(3*8)+(2*1)+(1*8)=131
131 % 10 = 1
So 205748-18-1 is a valid CAS Registry Number.