84340-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84340-91-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,3,4 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84340-91:
(7*8)+(6*4)+(5*3)+(4*4)+(3*0)+(2*9)+(1*1)=130
130 % 10 = 0
So 84340-91-0 is a valid CAS Registry Number.