Nonane,
1,1,1,3,5,7,9,9-octachloro-2,2,3,4,4,5,6,6,7,8,8,9-dodecafluoro- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 53281-03-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,2,8 and 1 respectively; the second part has 2 digits, 0 and 3 respectively. Calculate Digit Verification of CAS Registry Number 53281-03: (7*5)+(6*3)+(5*2)+(4*8)+(3*1)+(2*0)+(1*3)=101 101 % 10 = 1 So 53281-03-1 is a valid CAS Registry Number.