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71768

Sigma-Aldrich

4-Nitrophenyl phosphate disodium salt hexahydrate

suitable for enzyme immunoassay, ≥99.0% (enzymatic)

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Synonym(s):
p-Nitrophenyl phosphate disodium hexahydrate, Disodium 4-nitrophenyl phosphate hexahydrate, di-Sodium 4-nitrophenyl phosphate, pNPP disodium hexahydrate
Linear Formula:
O2NC6H4OP(O)(ONa)2 · 6H2O
CAS Number:
Molecular Weight:
371.14
Beilstein:
5324661
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.83

Quality Level

Assay

≥99.0% (enzymatic)

form

powder or crystals

technique(s)

enzyme immunoassay: suitable

impurities

≤0.1% free nitrophenol

storage temp.

2-8°C

SMILES string

O.O.O.O.O.O.[Na+].[Na+].[O-][N+](=O)c1ccc(OP([O-])([O-])=O)cc1

InChI

1S/C6H6NO6P.2Na.6H2O/c8-7(9)5-1-3-6(4-2-5)13-14(10,11)12;;;;;;;;/h1-4H,(H2,10,11,12);;;6*1H2/q;2*+1;;;;;;/p-2

InChI key

KAKKHKRHCKCAGH-UHFFFAOYSA-L

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This Item
N9389N2765S0942
Phosphatase substrate 5 mg tablets

Sigma-Aldrich

S0942

Phosphatase substrate

form

powder or crystals

form

tablet

form

tablet

form

tablet (round)

technique(s)

enzyme immunoassay: suitable

technique(s)

-

technique(s)

-

technique(s)

-

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

Quality Level

100

Quality Level

300

Quality Level

300

Quality Level

300

impurities

≤0.1% free nitrophenol

impurities

-

impurities

-

impurities

-

General description

Chromogenic substrate for the determination of acid and alkaline phosphatases. The reaction produces a soluble end product that is yellow in color. The reaction may be stopped with 3 N NaOH and read at 405 nm.

Application

4-nitrophenyl phosphate disodium salt hexahydrate has been used:
  • as a substrate to measure the kinetic parameters of phosphatase and tensin homologue deleted on chromosome 10 (PTEN) phosphatase activity
  • as substrate to assay acid phosphatase activity
  • as substrate to assay bound antibodies with anti-rabbit/human alkaline phosphatase conjugate

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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The phytase from antarctic bacterial isolate, Pseudomonas sp. JPK1 as a potential tool for animal agriculture to reduce manure phosphorus excretion
Park I and Cho J
African Journal of Agricultural Research, 6(6), 1398-1406 (2011)
Serological diagnosis of echinococcosis: the diagnostic potential of native antigens
Schweiger A, et al.
Infection, 40(2), 139-152 (2012)
Targeting PTEN using small molecule inhibitors
Mak LH and Woscholski R
Methods, 77, 63-68 (2015)
Antibodies against 4-hydroxy-2-nonenal modified epitopes recognized chromatin and its oxidized forms: role of chromatin, oxidized forms of chromatin and 4-hydroxy-2-nonenal modified epitopes in the etiopathogenesis of SLE
Al-Shobaili HA, et al.
Disease Markers, 33(1), 19-34 (2012)
Christina Papista et al.
Kidney international, 88(2), 276-285 (2015-03-26)
IgA1 complexes containing deglycosylated IgA1, IgG autoantibodies, and a soluble form of the IgA receptor (sCD89), are hallmarks of IgA nephropathy (IgAN). Food antigens, notably gluten, are associated with increased mucosal response and IgAN onset, but their implication in the

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