4947-79-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4947-79-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,4 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4947-79:
(6*4)+(5*9)+(4*4)+(3*7)+(2*7)+(1*9)=129
129 % 10 = 9
So 4947-79-9 is a valid CAS Registry Number.