1216272-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1216272-28-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,6,2,7 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1216272-28:
(9*1)+(8*2)+(7*1)+(6*6)+(5*2)+(4*7)+(3*2)+(2*2)+(1*8)=124
124 % 10 = 4
So 1216272-28-4 is a valid CAS Registry Number.