Change as many letters to make a new word - 52 letters

[a 1 player]

aequeosalinocalcalinoceraceoaluminosocupreovitriolic

 

[Berlin]

wwwwhaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaatt ?

 

[a 1 player]

God bless google.

 

[DistantVoyeur]

betamethoxyhydropyranoperethyltertacetylcarboxylicacid.

Nobodies made it yet, but someday.....

 

[Jade4u]

Screw it I found the longest real word in English

acetylseryltyrosylserylisoleucylthreonylserylprolylserylglutaminyl-
phenylalanylvalylphenylalanylleucylserylserylvalyltryptophylalanyl-
aspartylprolylisoleucylglutamylleucylleucylasparaginylvalylcysteinyl-
threonylserylserylleucylglycylasparaginylglutaminylphenylalanyl-
glutaminylthreonylglutaminylglutaminylalanylarginylthreonylthreonyl-
glutaminylvalylglutaminylglutaminylphenylalanylserylglutaminylvalyl-
tryptophyllysylprolylphenylalanylprolylglutaminylserylthreonylvalyl-
arginylphenylalanylprolylglycylaspartylvalyltyrosyllysylvalyltyrosyl-
arginyltyrosylasparaginylalanylvalylleucylaspartylprolylleucylisoleucyl-
threonylalanylleucylleucylglycylthreonylphenylalanylaspartylthreonyl-
arginylasparaginylarginylisoleucylisoleucylglutamylvalylglutamyl-
asparaginylglutaminylglutaminylserylprolylthreonylthreonylalanylglutamyl-
threonylleucylaspartylalanylthreonylarginylarginylvalylaspartylaspartyl-
alanylthreonylvalylalanylisoleucylarginylserylalanylasparaginylisoleucyl-
asparaginylleucylvalylasparaginylglutamylleucylvalylarginylglycyl-
threonylglycylleucyltyrosylasparaginylglutaminylasparaginylthreonyl-
phenylalanylglutamylserylmethionylserylglycylleucylvalyltryptophyl-
threonylserylalanylprolylalanylserine

http://en.wikipedia.org/wiki/Acetylseryltyrosylserylisoleucylthreonylserylprolylserylglutaminyl

1185-letter word

Just try to say it.

 

[DistantVoyeur]

It's the longest protein they've bothered to name. It can easily be beaten by anyone naming a longer protein.

I just made up a chemical from subgroups to get close to the 50 letters. If anyone wants to try snythesize it for me.... ?

 

[a 1 player]

Screw it I found the longest real word in English

acetylseryltyrosylserylisoleucylthreonylserylprolylserylglutaminyl-
phenylalanylvalylphenylalanylleucylserylserylvalyltryptophylalanyl-
aspartylprolylisoleucylglutamylleucylleucylasparaginylvalylcysteinyl-
threonylserylserylleucylglycylasparaginylglutaminylphenylalanyl-
glutaminylthreonylglutaminylglutaminylalanylarginylthreonylthreonyl-
glutaminylvalylglutaminylglutaminylphenylalanylserylglutaminylvalyl-
tryptophyllysylprolylphenylalanylprolylglutaminylserylthreonylvalyl-
arginylphenylalanylprolylglycylaspartylvalyltyrosyllysylvalyltyrosyl-
arginyltyrosylasparaginylalanylvalylleucylaspartylprolylleucylisoleucyl-
threonylalanylleucylleucylglycylthreonylphenylalanylaspartylthreonyl-
arginylasparaginylarginylisoleucylisoleucylglutamylvalylglutamyl-
asparaginylglutaminylglutaminylserylprolylthreonylthreonylalanylglutamyl-
threonylleucylaspartylalanylthreonylarginylarginylvalylaspartylaspartyl-
alanylthreonylvalylalanylisoleucylarginylserylalanylasparaginylisoleucyl-
asparaginylleucylvalylasparaginylglutamylleucylvalylarginylglycyl-
threonylglycylleucyltyrosylasparaginylglutaminylasparaginylthreonyl-
phenylalanylglutamylserylmethionylserylglycylleucylvalyltryptophyl-
threonylserylalanylprolylalanylserine

I think I smoked that when I was younger.