The Hopkins-Cole reaction or glyoxylic acid reaction, is a chemical test used for qualitative detecting of tryptophan in protein solutions.

tryptophan + glyoxylic acid + sulfuric acid > violet product

I know the chemical formulas of reactants, but I could not find the product formula and a mechanism for the reaction.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.