71272-84-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71272-84-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,7 and 2 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 71272-84:
(7*7)+(6*1)+(5*2)+(4*7)+(3*2)+(2*8)+(1*4)=119
119 % 10 = 9
So 71272-84-9 is a valid CAS Registry Number.