511543-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 511543-91-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,1,5,4 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 511543-91:
(8*5)+(7*1)+(6*1)+(5*5)+(4*4)+(3*3)+(2*9)+(1*1)=122
122 % 10 = 2
So 511543-91-2 is a valid CAS Registry Number.