ChEBI: 4-methoxyglucobrassicin is an indolylmethylglucosinolic acid that is glucobrassicin bearing a methoxy 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-methoxyglucobrassicin(1-).