204130-76-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204130-76-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,1,3 and 0 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 204130-76:
(8*2)+(7*0)+(6*4)+(5*1)+(4*3)+(3*0)+(2*7)+(1*6)=77
77 % 10 = 7
So 204130-76-7 is a valid CAS Registry Number.