US Trademark Classification US01 Chemicals Nitrophenol Class 01 Nitrophenol 001-557 硝基苯酚 Chinese 硝基苯酚 English Nitrophenol Spanish Nitrofenol Term ID 001-557 Class 01 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002