84370-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84370-80-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,3,7 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 84370-80:
(7*8)+(6*4)+(5*3)+(4*7)+(3*0)+(2*8)+(1*0)=139
139 % 10 = 9
So 84370-80-9 is a valid CAS Registry Number.