145169-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 145169-55-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,1,6 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 145169-55:
(8*1)+(7*4)+(6*5)+(5*1)+(4*6)+(3*9)+(2*5)+(1*5)=137
137 % 10 = 7
So 145169-55-7 is a valid CAS Registry Number.