4h,5h-pyrano[4,3-b]pyran-3-carboxylic Acid, 2-amino-7-methyl-4-(3-nitrophenyl)-5-oxo-, Methyl Ester (en) is a chemical compound registered under CAS number 265315-66-0. ReagentForLab supplies 4h,5h-pyrano[4,3-b]pyran-3-carboxylic Acid, 2-amino-7-methyl-4-(3-nitrophenyl)-5-oxo-, Methyl Ester (en) for laboratory research and bulk production; product code 1519710. Send an inquiry for purity, packaging, price and lead time.