Hex-actly the right words?

Being a lover of words -- but not a philologist -- I present you with a few longish ones today. What do you think of this trio:

• Over at wikipedia, there's Hexakosioihexekontahexaphobia
  
  
• Next there's Antidisestablishmentarianism -- an oldie but a goodie (hint: start off by understanding the meaning of "establishmentarianism")
  
  
• Then there's Dibromothymolsulphonphthalein (a.k.a. "Bromthymol Blue", or BTB, because of its intense blue color). Used in chemistry as an indicator. Formula: C27H28Br2O5S ... I've been out of the chemistry profession for over 35 years, so I had to look it up, but its modern chemical name is: 3,3”-Dibromothymolsulphonephthalein

Looking forward to your contributions!