197153-74-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197153-74-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,1,5 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 197153-74:
(8*1)+(7*9)+(6*7)+(5*1)+(4*5)+(3*3)+(2*7)+(1*4)=165
165 % 10 = 5
So 197153-74-5 is a valid CAS Registry Number.