The following link may help you to find:

http://www.molbase.com/en/name-FC%204%20%28surfactant%29.html

https://www.chemicalbook.com/ProductChemicalPropertiesCB41014251_en.htm

For second one, you can ask the quotation

Haodong Ji, thanks for your answer. I already did that and 2 of the 3 companies in there do not have the product. I guess I'm going with the Chinese vendor, I was trying to find it in the US so I can get it faster (and maybe cheaper).

Thanks again.

https://www.alibaba.com/showroom/fluoro-surfactant-fc--4.html

You can try this Chinese vendor. They also showed the price@Alex Patino

Or you can directly find this company:

https://whbright.en.alibaba.com/company_profile.html#top-nav-bar