An enzyme that catalyzes the hydrolysis of nitrophenyl phosphates to nitrophenols. At acid pH it is probably ACID PHOSPHATASE (EC 3.1.3.2); at alkaline pH it is probably ALKALINE PHOSPHATASE (EC 3.1.3.1). EC 3.1.3.41.

Synonyms: p-NPPase, p-Nitrophenylphosphatase, Nitrophenyl Phosphatase, p NPPase, K Dependent p Nitrophenylphosphatase, K+ NPPase, p Nitrophenylphosphatase, K-p NPPase, 4-Nitrophenylphosphate phosphohydrolase, K+-NPPase, p-Nitrophenylphosphatase, K-Dependent, K p NPPase, EC 3.1.3.41, 0, 4 Nitrophenylphosphatase, para-Nitrophenylphosphatase, para Nitrophenylphosphatase, K-Dependent p-Nitrophenylphosphatase, para Nitrophenyl Phosphatase, 4-Nitrophenylphosphatase, 4 Nitrophenyl Phosphatase, 4-Nitrophenyl Phosphatase, para-Nitrophenyl Phosphatase