204930-93-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204930-93-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,9,3 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 204930-93:
(8*2)+(7*0)+(6*4)+(5*9)+(4*3)+(3*0)+(2*9)+(1*3)=118
118 % 10 = 8
So 204930-93-8 is a valid CAS Registry Number.