Potassium nitrate-15N

98 atom % 15N

15N Labeled potassium nitrite, 15N Labeled KNO3
Linear Formula:
CAS Number:
Molecular Weight:
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PubChem Substance ID:

isotopic purity

98 atom % 15N

Quality Level


334 °C (lit.)

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General description

Potassium nitrate-15N is an inorganic compound enriched with 15N isotope.


Labeled Potassium Nitrate has been used
• To successfully follow the uptake of fertilizer N by crops and retention of fertilizer N in soil organic matter.
• As internal standard for quantification of nitrate in biological samples, mainly of human or animal origin.
• Measurement of protein abundance in Arabidopsis.


1 g in glass bottle
250 mg in glass bottle
This product may be available from bulk stock and can be packaged on demand. For information on pricing, availability and packaging, please contact Stable Isotopes Customer Service.


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Hazard Statements

Precautionary Statements


UN 1486 5.1 / PGIII

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Mathieu Sebilo et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(45), 18185-18189 (2013-10-23)
Increasing diffuse nitrate loading of surface waters and groundwater has emerged as a major problem in many agricultural areas of the world, resulting in contamination of drinking water resources in aquifers as well as eutrophication of freshwaters and coastal marine...
Guangyu Guo et al.
Phytochemistry, 72(10), 1028-1039 (2011-02-15)
In the quantitative proteomic studies, numerous in vitro and in vivo peptide labeling strategies have been successfully applied to measure differentially regulated protein and peptide abundance. These approaches have been proven to be versatile and repeatable in biological discoveries. (15)N...
Sebastian Schramm et al.
Molecules (Basel, Switzerland), 24(8) (2019-04-21)
Feeding experiments with stable isotopes are helpful tools for investigation of metabolic fluxes and biochemical pathways. For assessing nitrogen metabolism, the heavier nitrogen isotope, [15N], has been frequently used. In plants, it is usually applied in form of [15N]-nitrate, which...
Bin Hu et al.
Nature plants, 5(4), 401-413 (2019-03-27)
To ensure high crop yields in a sustainable manner, a comprehensive understanding of the control of nutrient acquisition is required. In particular, the signalling networks controlling the coordinated utilization of the two most highly demanded mineral nutrients, nitrogen and phosphorus...
Alamin Alfatih et al.
Journal of experimental botany, 71(19), 6032-6042 (2020-06-26)
Nitrogen (N) is indispensable for crop growth and yield, but excessive agricultural application of nitrogenous fertilizers has generated severe environmental problems. A desirable and economical solution to cope with these issues is to improve crop nitrogen use efficiency (NUE). Plant...
Related Content
Tracer techniques using isotopic N have been employed since the 1940s to investigate such topics as N transformations and cycling in agricultural and other soils, N sources for crop uptake, the fate and behavior of fertilizer N applied to soils, the nature and extent of soil and fertilizer losses, and fertilizer N uptake efficiency.
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