4-Amino-3-hydroxypyridine (CAS NO.52334-53-9) is also called as 3-Hydroxy-4-aminopyridine ; 4-Amino-pyridin-3-ol ; 4-Amino-3-hydroxy pyridine ; 4-Amino-3-hydroxypyridine hydrochloride ; 4-Amino-3-pyridinol hydrochloride ; 4-Amino-pyridin-3-ol hbr ; 4-Aminopyridin-3-ol hydrochloride .