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P7998

Sigma-Aldrich

Alkaline Phosphatase Yellow

alkaline phosphatase substrate, chromogenic liquid

Synonym(s):

Alkaline phosphatase substrate solution (pNPP)

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About This Item

UNSPSC Code:
12352204
eCl@ss:
42010105
NACRES:
NA.83

product name

Alkaline Phosphatase Yellow (pNPP) Liquid Substrate System for ELISA, ready to use solution

Quality Level

200

form

liquid

storage temp.

2-8°C

Related Categories

General description

The product is ready to use buffered alkaline phosphatase substrate consist of p-nitrophenylphosphate (pNPP). This is the advanced substrate system contains insoluble stabilizer that enhances the stability and reactivity as well as reduces the base-line absorption. It produces a soluble end product, hence not recommended for blotting or histochemistry applications.

Application

Develops a soluble yellow reaction product that may be read at 405 nm. For endpoint assays, the reaction may be stopped with 3 N NaOH. Recommended for ELISA (microwell) procedures; not recommended for membrane applications.

Caution

 Stable at least one year at 2-8 °C.

Physical form

Ready to use

Preparation Note

Contains p-nitrophenyl phosphate, a substrate for alkaline phosphatase.

Pictograms

Health hazardCorrosion
GHS08,GHS05

Signal Word

Danger

Hazard Statements

H315,H318,H373

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2 - STOT RE 2

Storage Class Code

10 - Combustible liquids

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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Streptococcus pneumoniae serotype 1 is the predominant cause of invasive pneumococcal disease in sub-Saharan Africa, but the mechanism behind its increased invasiveness is not well understood. Here, we use mouse models of lung infection to identify virulence factors associated with
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COVID-19 is a rapidly spreading disease, posing a huge hazard to global health. The plasmid vaccine pTK1A-TPA-SpikeA (named COVID-eVax) encodes the severe acute respiratory syndrome coronavirus 2 S protein receptor-binding domain, developed for intramuscular injection followed by electroporation (EP). The
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Damage to the recurrent laryngeal nerve often causes hoarseness, dyspnea, dysphagia, and sometimes asphyxia due to vocal cord paralysis which result in a reduction of quality of life. Brain-derived neurotrophic factor (BDNF) and glial cell line-derived neurotrophic factor (GDNF) play
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