87209-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87209-80-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,2,0 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87209-80:
(7*8)+(6*7)+(5*2)+(4*0)+(3*9)+(2*8)+(1*0)=151
151 % 10 = 1
So 87209-80-1 is a valid CAS Registry Number.