1211431-48-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1211431-48-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,1,4,3 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1211431-48:
(9*1)+(8*2)+(7*1)+(6*1)+(5*4)+(4*3)+(3*1)+(2*4)+(1*8)=89
89 % 10 = 9
So 1211431-48-9 is a valid CAS Registry Number.