Is there a compound named Lauryl dodecyl Sulfate ?? What is its chemical formula? Is it the same as sodium dodecyl Sulfate?

Question

I want to use sodium dodecyl sulfate for iron ion precipitation from water but I couldn't get it. Instead there was lauryl dodecyl sulfate which i know nothing about 

Answer 1

Actually I don't believe there is such a compound as lauryl dodecyl sulfate.  Sodium dodecyl sulfate is the same thing as sodium lauryl sulfate.  But to have lauryl and dodecyl together makes no sense.  So, if you want to use SDS and cannot find it, then you can purchase SLS (sodium lauryl sulfate) as it is the same thing as SDS.