71573-68-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71573-68-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,7 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71573-68:
(7*7)+(6*1)+(5*5)+(4*7)+(3*3)+(2*6)+(1*8)=137
137 % 10 = 7
So 71573-68-7 is a valid CAS Registry Number.