57389-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57389-74-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,3,8 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57389-74:
(7*5)+(6*7)+(5*3)+(4*8)+(3*9)+(2*7)+(1*4)=169
169 % 10 = 9
So 57389-74-9 is a valid CAS Registry Number.