215502-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 215502-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,5,0 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 215502-71:
(8*2)+(7*1)+(6*5)+(5*5)+(4*0)+(3*2)+(2*7)+(1*1)=99
99 % 10 = 9
So 215502-71-9 is a valid CAS Registry Number.