Heptane, 1,1,2,2,3,3,4,4,5,5,6,6,7,7-tetradecafluoro-1,7-diiodo- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 22116-93-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,1 and 6 respectively; the second part has 2 digits, 9 and 3 respectively. Calculate Digit Verification of CAS Registry Number 22116-93: (7*2)+(6*2)+(5*1)+(4*1)+(3*6)+(2*9)+(1*3)=74 74 % 10 = 4 So 22116-93-4 is a valid CAS Registry Number.