72071-61-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72071-61-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,0,7 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 72071-61:
(7*7)+(6*2)+(5*0)+(4*7)+(3*1)+(2*6)+(1*1)=105
105 % 10 = 5
So 72071-61-5 is a valid CAS Registry Number.