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Monosodium 1-Naphthyl Phosphate Monohydrate [Substrate for Phosphatase]
(CAS RN:81012-89-7 Product Number:N0452)


Monosodium 1-Naphthyl Phosphate
Synonym 1-Naphthylphosphoric Acid Monosodium Salt Monohydrate
Synonym Phosphoric Acid 1-Naphthyl Ester Monosodium Salt Monohydrate
Synonym Sodium 1-Naphthyl Hydrogen Phosphate Monohydrate

General Information

Product Number N0452

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Purity/Analysis Method >97.0%(T)
Storage Temperature
M.F. / M.W. C10H8NaO4P·H2O=264.15
CAS RN 81012-89-7
Related CAS RN
MDL Number MFCD00041008
Packaging and Container
  • Product Details
  • Safety & Regulations


Appearance White to Light yellow to Light red powder to crystal
Purity(Nonaqueous Titration) min. 97.0 %(calcd.on anh.substance)
Water 5.3 to 8.3 %
Alkaline Phosphatase detection test to pass test


Reaxys-RN 4895811
PubChem SID 87573787


Signal Word Warning
Hazard Statements
  • H315
  • :Causes skin irritation.
  • H319
  • :Causes serious eye irritation.
Precautionary Statements
  • P264
  • :Wash hands and face thoroughly after handling.
  • P280
  • :Wear protective gloves, eye protection.
  • P302+P352+P332+P313+P362+P364
  • :If on skin: Wash with plenty of soap and water. If skin irritation occurs: Get medical advice or attention. Take off contaminated clothing and wash it before reuse.
  • P305+P351+P338+P337+P313
  • :If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice or attention.


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