418789-72-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 418789-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,8,7,8 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 418789-72:
(8*4)+(7*1)+(6*8)+(5*7)+(4*8)+(3*9)+(2*7)+(1*2)=197
197 % 10 = 7
So 418789-72-7 is a valid CAS Registry Number.