pNPP (para-Nitrophenylphosphate) is a chromogenic substrate for alkaline phosphatase (AP), a label commonly conjugated to antibodies. Upon catalysis by AP, the phosphate group of pNPP is hydrolyzed to yield a product of yellow color. The resulting color change exhibits an absorbance maximum at 405 nm. pNPP is often used to measure proteins and antigens in ELISA applications. It can also be used to detect the activity of various phosphatases, including protein tyrosine phosphatases.
Your search returned 6 pNPP across 5 suppliers.
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Bio-Rad
- 500 ml
- EIA, Immunoassay, ELISA
- Colorimetric
- Liquid
- 100 ml
- EIA, Immunoassay, ELISA
- Colorimetric
- Liquid
Abcam
- 5 G, 25 G
- ELISA
- Colorimetric
- Solid
Mabtech AB
- 120 ml
- EIA, Immunoassay, ELISA
- Colorimetric
MyBioSource.com
- 100 ml
- ELISA
- Colorimetric
- Liquid
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