215436-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 215436-40-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,4,3 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 215436-40:
(8*2)+(7*1)+(6*5)+(5*4)+(4*3)+(3*6)+(2*4)+(1*0)=111
111 % 10 = 1
So 215436-40-1 is a valid CAS Registry Number.