n acetyl cysteine conversion to glutathione A simple RP-HPLC method for the stability-indicating determination of N -acetyl-L-cysteine and N,N'-diacetyl-L-cystine in cell culture media Mechanism of action and summary
Description
The molecular basis of the coloration mechanism in lobster shell: -Crustacyanin at 3.2- resolution
Acetic acid is another diluent you might see mentioned, but it's typically reserved for peptides that are less soluble in water

Yao D, Li R, Hao J, Huang H, Wang X, Ran L, et al

Metabolic Conjugation and Metabolic Hydrolysis: Volume I (Academic, 2014)
