N2770
p-Nitrophenyl phosphate
SIGMAFAST™, chromogenic, tablet
Synonym(s):
pNPP tablets
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About This Item
Product Name
SIGMAFAST™ p-Nitrophenyl phosphate Tablets, tablet, To prepare 20 mL
Quality Segment
form
tablet
solubility
water: 0.25 tablet/mL, clear, colorless
storage temp.
−20°C
Application
Developed for use as a soluble substrate for the detection of alkaline phosphatase activity in Enzyme Immunoassays (EIA). pNPP is the substrate of choice in high sensitivity alkaline phosphatase-based EIA assays.One pNPP tablet and one Tris buffer tablet are dissolved in deionized water and provide a ready-to-use substrate. Each SIGMAFAST pNPP tablet set yields a solution containing 1.0 mg/ml pNPP, 0.2 M Tris buffer. EIA applications using pNPP may be read in timed assays or stopped with 3N NaOH for delayed readings. SIGMAFAST™ require only the addition of distilled or deionized water to prepare an active substrate solution. Tablets are individually packaged in foil packets.
Preparation Note
Each tablet set dissolved in 20 mL deionized water yields a ready-to-use buffered solution containing pNPP.
Legal Information
SIGMAFAST is a trademark of Sigma-Aldrich Co. LLC
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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