作为染料中间体可合成压热敏染料、阳离子艳红G(C.I.Basic Red 52);作为分析试剂,用于测定吲哚、粪臭素、尿蓝母、色氨酸、麦角碱、尿胆素、白蛋白、过氧化氢、胂凡钠明、邻氨基苯甲酸、安替比林等,还可区别血清发疹和猩红热,以及用于检测氨基酸、肽、胺、吲哚、肼、蛋白质中的色氨酸等,也用于肠杆菌等细菌鉴定。
1-(4-硝基苯基偶氮)-2-萘酚; 1-((4-硝基苯基)二氮烯基)萘-2-醇; 1-(4-硝基苯基偶氮)萘-2-醇; 對位紅; 1-(4-NITROPHENYLAZO)-2-NAPHTHOL; 1-((4-Nitrophenyl)diazenyl)naphthalen-2-ol; Para Toner; Para Red Toner; Fast Rose Red Lake; PIGMENT RED 1; CIPIGMENTRED1; 2-Naphthalenol, 1-[(4-nitrophenyl)azo]-; 1-((4-nitrophenyl)azo)-2-naphthaleno; 1-((4-nitrophenyl)azo)-2-naphtho; 1-[(4-nitrophenyl)azo]-2-naphthaleno; 1-(P-NITROPHENYLAZO)-2-NAPHTHOL; 1-[(4-nitrofenyl)diazenyl]-2-naftol