72811-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72811-19-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,8,1 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 72811-19:
(7*7)+(6*2)+(5*8)+(4*1)+(3*1)+(2*1)+(1*9)=119
119 % 10 = 9
So 72811-19-9 is a valid CAS Registry Number.