144224-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144224-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,2,2 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 144224-81:
(8*1)+(7*4)+(6*4)+(5*2)+(4*2)+(3*4)+(2*8)+(1*1)=107
107 % 10 = 7
So 144224-81-7 is a valid CAS Registry Number.