Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

P4744

Sigma-Aldrich

Phosphatase substrate

chromogenic, powder

Synonym(s):

4-Nitrophenyl phosphate disodium salt hexahydrate, pNPP disodium salt hexahydrate

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
O2NC6H4OP(O)(ONa)2 · 6H2O
CAS Number:
333338-18-4
Molecular Weight:
371.14
EC Number:
224-246-5
MDL number:
MFCD00066288
UNSPSC Code:
12352204
PubChem Substance ID:
24898495
NACRES:
NA.83

product name

Phosphatase substrate, powder

Quality Level

200

form

powder

solubility

water: 100 mg/mL, clear to slightly hazy

storage temp.

−20°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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Phosphatase substrate has been used as a substrate in tartrate-resistant acid phosphatase (TRAP) assay and alkaline phosphatase (ALP).
Chromogenic substrate for use with alkaline and acid phosphatase ELISA procedures. Produces a soluble end product that is yellow in color and can be read spectrophotometrically at 405 nm. The pNPP reaction may be stopped with 3 N NaOH and read at 405 nm.

Other Notes

Substrate for the determination of acid and alkaline phosphatases.

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

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’.

Already Own This Product?

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

Visit the Document Library

Osteoclastogenic activity and RANKL expression are inhibited in osteoblastic cells expressing constitutively active Galpha12 or constitutively active RhoA
Wang J and Stern PH
Journal of Cellular Biochemistry, 111(6), 1531-1536 (2010)
Inhibiting calcineurin activity under physiologic tonicity elevates anabolic but suppresses catabolic chondrocyte markers
van der Windt AE, et al.
Arthritis and Rheumatism, 64(6), 1929-1939 (2012)
Yeyun Zhou et al.
Structure (London, England : 1993), 27(10), 1485-1496 (2019-08-14)
ASPP (apoptosis-stimulating proteins of p53) proteins bind PP-1c (protein phosphatase 1) and regulate p53 impacting cancer cell growth and apoptosis. Here we determine the crystal structure of the oncogenic ASPP protein, iASPP, bound to PP-1c. The structure reveals a 1:1
Elizabeth A Shirtcliff et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(8), 2963-2967 (2009-02-04)
It is well known that children need solicitous parenting and a nurturing rearing environment to ensure their normal behavioral development. Early adversity often negatively impacts emotional and mental well-being, but it is less clearly established how much the maturation and
Haijun Tong et al.
International journal of nanomedicine, 8, 1935-1946 (2013-06-06)
Genetically modified mesenchymal stem cells (MSCs) have great potential in the application of regenerative medicine and molecular therapy. In the present manuscript, we introduce a nanopolymer, polyethylenimine600-β-cyclodextrin (PEI600-β-CyD), as an efficient polyplex-forming plasmid delivery agent with low toxicity and ideal
View All Related Papers

Articles

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.

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