137595-91-6

1H-Pyrrole-2-carboxylic acid,5-[(5-carboxy-3,4-dimethyl-2H-pyrrol-2-ylidene)methyl]-3,4-dimethyl-,dipotassium salt

1H-Pyrrole-2-carboxylic acid,5-[(5-carboxy-3,4-dimethyl-2H-pyrrol-2-ylidene)methyl]-3,4-dimethyl-,dipotassium salt