71911-92-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71911-92-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,1 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 71911-92:
(7*7)+(6*1)+(5*9)+(4*1)+(3*1)+(2*9)+(1*2)=127
127 % 10 = 7
So 71911-92-7 is a valid CAS Registry Number.