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4-Aminophenylphosphate . sodium salt

CHF 30.00
In stock
AG-CR1-3586-M01010 mgCHF 30.00
AG-CR1-3586-M05050 mgCHF 100.00
AG-CR1-3586-M100100 mgCHF 160.00
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Product Details
Synonyms 4-APP; 4-Aminobenzenephosphoric sodium; PNPP; p-Nitrophenyl phosphate
Product Type Chemical

C6H7NO4P . Na

MW 188.1 . 23.0
CAS 108084-47-5 | 52331-30-3 (free base)
Purity Chemicals ≥97%
Appearance Off-white to light gray crystalline solid.
Solubility Soluble in methanol.
Smiles [Na+].NC1=CC=C(OP(O)([O-])=O)C=C1
Shipping and Handling
Shipping AMBIENT
Short Term Storage +4°C
Long Term Storage -20°C
Handling Advice After reconstitution, prepare aliquots and store at -20°C.
Avoid freeze/thaw cycles.
Use/Stability Stable for at least 2 years after receipt when stored at -20°C.
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Product Specification Sheet
Datasheet Download PDF
  • Substrate for the electrochemical measurement of alkaline phosphatase.
Product References
  1. Measurement of alkaline phosphatase activity by electrochemical detection of phosphate esters: Application to amperometric enzyme immunoassay: J.E. Frew, et al.; J. Electroanal. Chem. Interfac. Electrochem. 266, 309 (1989)
  2. Comparison of methods for following alkaline phosphatase catalysis: spectrophotometric versus amperometric detection: R.Q. Thompson, et al.; Anal. Chem. 192, 90 (1991)
  3. An extra phosphorylation of Na+,K(+)-ATPase by paranitrophenylphosphate (pNPP): evidence for the oligomeric nature of the enzyme: A. Yamazaki, et al.; J. Biochem. 116, 1360 (1994)
  4. Immunosensors: electrochemical sensing and other engineering approaches: A.L. Ghindilis, et al.; Biosens. Bioelectron. 13, 113 (1998)
  5. A comparison of 1-naphthyl phosphate and 4 aminophenyl phosphate as enzyme substrates for use with a screen-printed amperometric immunosensor for progesterone in cows milk: R.M. Pemberton, et al.; Biosens. Bioelectron. 14, 495 (1999)
  6. Comparative Study of 4-Aminophenyl Phosphate and Ascorbic Acid 2-Phosphate, as Substrates for Alkaline Phosphatase Based Amperometric Immunosensor : E.J. Moore, et al.; Anal. Lett. 36, (2003)
  7. Optimization of phosphatase- and redox cycling-based immunosensors and its application to ultrasensitive detection of troponin I: M.R. Akanda, et al.; Anal. Chem. 83, 3926 (2011)
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