Name | Disodium 4-nitrophenylphosphate |
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Synonyms |
4-Nitrophenyl dihydrogen phosphate
disodium,(4-nitrophenyl) phosphate 4-Nitrophenylphosphoric Acid Disodium Salt 4-Nitrophenyl phosphate disodium salt Phosphoric acid mono(4-nitrophenyl) ester 4-Nitrophenyl phosphate disodium salt hexahydrate p-Nitrophenyl Phosphate Liquid Substrate System p-nitro-Phenol dihydrogen phosphate 4-Nitrophenyl phosphate,disodium salt,hexahydrate para-Nitrophenylphosphate EINECS 224-246-5 MFCD00007319 Phosphoric acid mono(p-nitrophenyl) ester Phosphoric acid, mono(4-nitrophenyl) ester Sodium 4-nitrophenyl phosphate PNPP |
Description | PNPP is a non-proteinaceous chromogenic substrate for alkaline and acid phosphatases used in ELISA and conventional spectrophotometric assays. |
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Related Catalog | |
In Vitro | Phosphatases catalyze the hydrolysis of PNPP liberating inorganic phosphate and the conjugate base of para-nitrophenol (pNP). The resulting phenolate is yellow, with a maximal absorption at 405 nm[1]. |
Density | 1.7±0.1 g/cm3 |
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Boiling Point | 457.8±47.0 °C at 760 mmHg |
Melting Point | >300 °C(lit.) |
Molecular Formula | C6H4NNa2O6P |
Molecular Weight | 219.089 |
Flash Point | 230.7±29.3 °C |
Exact Mass | 218.993271 |
PSA | 128.05000 |
LogP | 0.37 |
Vapour Pressure | 0.0±1.2 mmHg at 25°C |
Index of Refraction | 1.617 |
Storage condition | 2-8°C |
Stability | Stable, but may be light sensitive. Incompatible with strong acids, strong bases, strong oxidizing agents. |
Water Solubility | H2O: 1 tablet/3 mL 25 mM, clear, light yellow |
Symbol |
GHS05, GHS08 |
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Signal Word | Danger |
Hazard Statements | H290-H315-H318-H373 |
Precautionary Statements | P260-P280-P305 + P351 + P338 + P310 |
Hazard Codes | Xi: Irritant; |
Risk Phrases | R36/37/38 |
Safety Phrases | S26-S36-S24/25-S23 |
RIDADR | NONH for all modes of transport |
WGK Germany | 3 |
HS Code | 2919900090 |
~52% 4264-83-9 |
Literature: Schiller, Alexander; Scopelliti, Rosario; Severin, Kay Dalton Transactions, 2006 , # 32 p. 3858 - 3867 |
Precursor 1 | |
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DownStream 1 | |
HS Code | 2919900090 |
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Summary | 2919900090 other phosphoric esters and their salts, including lactophosphates; their halogenated, sulphonated, nitrated or nitrosated derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0% |