658078-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 658078-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,8,0,7 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 658078-77:
(8*6)+(7*5)+(6*8)+(5*0)+(4*7)+(3*8)+(2*7)+(1*7)=204
204 % 10 = 4
So 658078-77-4 is a valid CAS Registry Number.