ChEBI: 4-hydroxyglucobrassicin is an indolylmethylglucosinolic acid that is glucobrassicin bearing a hydroxy substituent at position 4 on the indole ring. It is an indolyl carbohydrate and an indolylmethylglucosinolic acid. It is functionally related to a glucobrassicin. It is a conjugate acid of a 4-hydroxyglucobrassicin(1-).