78947-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78947-98-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,4 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 78947-98:
(7*7)+(6*8)+(5*9)+(4*4)+(3*7)+(2*9)+(1*8)=205
205 % 10 = 5
So 78947-98-5 is a valid CAS Registry Number.