tryptophan

[KillJoy]

how long was was tryptophan on the market before 1989?


thanks

kj

 

[anthrax]

In 1901 Hopkins, along with S.W. Cole succeeded in isolating from proteins the amino acid tryptophan.
Tryptophan was discovered in the enzymatic digest of casein by Hopkins and Cole

 

[KillJoy]

thanks for the info....i need it for a paper......

kj