78889-33-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78889-33-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,8 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 78889-33:
(7*7)+(6*8)+(5*8)+(4*8)+(3*9)+(2*3)+(1*3)=205
205 % 10 = 5
So 78889-33-5 is a valid CAS Registry Number.