2H-Pyran-2,6(3H)-dione, 5-acetyl-3-(1-((3-amino-4-hydroxyphenyl)amino)ethylidene)-4-hydroxy-, monohydrochloride 5-Acetyl-3-(1-((3-amino-4-hydroxyphenyl)amino)ethylidene)-4-hydroxy-2H-pyran-2,6(3H)-dione monohydrochloride 64353-91-9 EINECS 264-838-0 SK&F 78729 A