1224172-54-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1224172-54-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,4,1,7 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1224172-54:
(9*1)+(8*2)+(7*2)+(6*4)+(5*1)+(4*7)+(3*2)+(2*5)+(1*4)=116
116 % 10 = 6
So 1224172-54-6 is a valid CAS Registry Number.