Skip to Content
Merck
All Photos(4)

Key Documents

N9252

Sigma-Aldrich

Naphthol AS phosphate disodium salt

≥98% purity, powder

Synonym(s):

2-Naphthalenecarboxamide, N-phenyl-3-(phosphonooxy)-, disodium saltdisodium;[3-(phenylcarbamoyl)naphthalen-2-yl] phosphate

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
C17H12NO5PNa2
CAS Number:
Molecular Weight:
387.23
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

product name

Naphthol AS phosphate disodium salt, ≥98% (TLC)

Quality Level

Assay

≥98% (TLC)

form

powder

composition

Water (by Karl Fischer): ≤ 34.3%

Phosphorus (dry basis): 7.6-8.8%

Sodium (dry basis): 10.6-13.2%

color

white to off-white

solubility

water: 50 mg/mL, clear, light yellow

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

−20°C

SMILES string

[Na+].[Na+].[O-]P([O-])(=O)Oc1cc2ccccc2cc1C(=O)Nc3ccccc3

InChI

1S/C17H14NO5P.2Na/c19-17(18-14-8-2-1-3-9-14)15-10-12-6-4-5-7-13(12)11-16(15)23-24(20,21)22;;/h1-11H,(H,18,19)(H2,20,21,22);;/q;2*+1/p-2

InChI key

APGJTCWWLWOMQM-UHFFFAOYSA-L

Application

Naphthol AS phosphate disodium salt is intended for use as a substrate for the histochemical demonstration of acid and alkaline phosphatase activities.

Substrates

Histochemical substrate for acid and alkaline phosphatase.

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service