71734-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71734-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,3 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71734-53:
(7*7)+(6*1)+(5*7)+(4*3)+(3*4)+(2*5)+(1*3)=127
127 % 10 = 7
So 71734-53-7 is a valid CAS Registry Number.