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N6125

Sigma-Aldrich

Naphthol AS-TR phosphate disodium salt

fluorogenic, ≥99% (HPLC), powder

Synonym(s):

NASTRp disodium salt

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About This Item

Empirical Formula (Hill Notation):
C18H13ClNNa2O5P
CAS Number:
4264-93-1
Molecular Weight:
435.71
MDL number:
MFCD00069550
UNSPSC Code:
12352204
PubChem Substance ID:
24897766
NACRES:
NA.83

product name

Naphthol AS-TR phosphate disodium salt, ≥99% (HPLC), Bulk package

Assay

≥99% (HPLC)

form

powder

solubility

water: 50 mg/mL, clear, colorless to faintly yellow

storage temp.

−20°C

SMILES string

[Na+].[Na+].Cc1cc(Cl)ccc1NC(=O)c2cc3ccccc3cc2OP([O-])([O-])=O

InChI

1S/C18H15ClNO5P.2Na/c1-11-8-14(19)6-7-16(11)20-18(21)15-9-12-4-2-3-5-13(12)10-17(15)25-26(22,23)24;;/h2-10H,1H3,(H,20,21)(H2,22,23,24);;/q;2*+1/p-2

InChI key

TYCHZTPSWMGRRI-UHFFFAOYSA-L

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Application

Substrate for the histochemical demonstration of acid and alkaline phosphatase.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Colorimetric Alkaline Phosphatase and Peroxidase Substrate Detection Systems

Nitroblue Tetrazolium (NBT) is used with the alkaline phosphatase substrate 5-Bromo- 4-Chloro-3-Indolyl Phosphate (BCIP) in western blotting and immunohistological staining procedures. These substrate systems produce an insoluble NBT diformazan end product that is blue to purple in color and can be observed visually.

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