75178-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75178-11-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,1,7 and 8 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 75178-11:
(7*7)+(6*5)+(5*1)+(4*7)+(3*8)+(2*1)+(1*1)=139
139 % 10 = 9
So 75178-11-9 is a valid CAS Registry Number.