para-Nitrophenylphosphate (pNPP) is a chromogenic substrate for acid and alkaline phosphatase in ELISA and conventional spectrophotometric assays. These enzymes catalyse the hydrolysis of pNPP to yellow para-nitrophenol. This product absorbs strongly at 405 nm and can be measured with a visible light spectrophotometer.

CAS：330-13-2
中文别名：磷酸单硝基苯基酯;
英文别名：Phosphoric acid,mono(4-nitrophenyl) ester;4-Nitrophenyl dihydrogen phosphate;4-Nitrophenyl phosphate;4-nitrophenyl hydrogen phosphate;(4-nitrophenyl) dihydrogen phosphate;PNPP;Nitrophenylphosphate;p-nitrophenyl dihydrogenphosphate;4-nitrophenyldihydrogen-phosphat;
分子式：C14H28N3O12P
分子量：461.359
精确质量：461.141
Psa：295.81
Logp：-1.6883

EINECS号：206-353-9

密度：1.712g/cm3
沸点：457.8ºC at 760mmHg
闪点：230.7ºC
储存条件：2-8ºC

WGK Germany：3
海关编码：2919900090