731772-53-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 731772-53-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,3,1,7,7 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 731772-53:
(8*7)+(7*3)+(6*1)+(5*7)+(4*7)+(3*2)+(2*5)+(1*3)=165
165 % 10 = 5
So 731772-53-5 is a valid CAS Registry Number.