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  • Product Name:   Disodium 4-nitrophenylphosphate
  • Synonyms:   PNPP-NA2;4-Nitrophenyl phosphate, disodiuM salt, hexahydrate, 98+% 10GR;PNPP-NA2/4-NPP;DisodiuM 4-nitrophenyIphosphate;sodiuM 4-nitrophenyl phosphate
  • CAS No.:   4264-83-9
  • Molecular Formula:   C6H4NNa2O6P
  • Molecular Weight :   263.05
  • Specification :   98%
  • Place of Origin:   China
  • Appearance :   
  • Document :   Download

Description of Disodium 4-nitrophenylphosphate
Disodium 4-nitrophenylphosphate Chemical Properties
Melting point  >300 °C(lit.)
storage temp.  2-8°C
solubility  H2O: 1 tablet/3 mL 25 mM, clear, light yellow
form  tablets
color  white to pale yellow
Water Solubility  Miscible with water. Immiscible with ethanol and acetone.
BRN  5324661
Stability: Stable, but may be light sensitive. Incompatible with strong acids, strong bases, strong oxidizing agents.
CAS DataBase Reference 4264-83-9(CAS DataBase Reference)
EPA Substance Registry System Phosphoric acid, mono(4-nitrophenyl) ester, disodium salt(4264-83-9)
Safety Information
Hazard Codes  Xi,Xn
Risk Statements  36/38-36/37/38-48/22-41-38-21/22
Safety Statements  26-36-24/25-23-36/37/39
WGK Germany  3
F  10-21
TSCA  Yes
Disodium 4-nitrophenylphosphate Usage And Synthesis
Chemical Properties White crystalline
Purification Methods Dissolve it in hot aqueous MeOH, filter and precipitate it by adding Me2CO. Wash the solid with Me2CO and repeat the purification. Aqueous MeOH and Et2O can also be used as solvents. The white fibrous crystals contain less than 1% of free 4-nitrophenol [assay: Axelrod J Biol Chem 167 57 1947]. [Beilstein 6 IV 1327.]
Disodium 4-nitrophenylphosphate Preparation Products And Raw materials
Raw materials Phosphorus oxychloride-->4-Nitrophenol

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