1216398-85-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1216398-85-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,6,3,9 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1216398-85:
(9*1)+(8*2)+(7*1)+(6*6)+(5*3)+(4*9)+(3*8)+(2*8)+(1*5)=164
164 % 10 = 4
So 1216398-85-4 is a valid CAS Registry Number.