477934-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 477934-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,7,9,3 and 4 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 477934-89:
(8*4)+(7*7)+(6*7)+(5*9)+(4*3)+(3*4)+(2*8)+(1*9)=217
217 % 10 = 7
So 477934-89-7 is a valid CAS Registry Number.