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364584

Sigma-Aldrich

Nitrogen-15N2

98 atom % 15N

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Synonym(s):
15N Labeled nitrogen
Linear Formula:
15N2
CAS Number:
Molecular Weight:
30.00
MDL number:
PubChem Substance ID:
NACRES:
NA.12

vapor density

1.34 (vs air)

Quality Level

isotopic purity

98 atom % 15N

Assay

99% (CP)

form

gas

mass shift

M+2

SMILES string

[15N]#[15N]

InChI

1S/N2/c1-2/i1+1,2+1

InChI key

IJGRMHOSHXDMSA-ZDOIIHCHSA-N

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1 of 4

This Item
490814490962490989
Nitrogen-15N2 98 atom % 15N

Sigma-Aldrich

364584

Nitrogen-15N2

Sodium nitrite-15N 98 atom % 15N, 95% (CP)

Sigma-Aldrich

490814

Sodium nitrite-15N

Urea-15N2 5 atom % 15N, 99% (CP)

Sigma-Aldrich

490962

Urea-15N2

Urea-15N2 60 atom % 15N, 99% (CP)

Sigma-Aldrich

490989

Urea-15N2

isotopic purity

98 atom % 15N

isotopic purity

98 atom % 15N

isotopic purity

5 atom % 15N

isotopic purity

60 atom % 15N

assay

99% (CP)

assay

95% (CP)

assay

99% (CP)

assay

99% (CP)

form

gas

form

solid

form

-

form

solid

mass shift

M+2

mass shift

M+1

mass shift

M+2

mass shift

M+2

Application

Nitrogen-15N2 (15N Labeled nitrogen) can be used:
  • In nitrogen fixation experiments to monitor the resulting metabolites in an organism.
  • 15N2 pulse-chase experiments to understand the route of transport of fixed nitrogen from the nodule to the shoot in plants.
  • To quantify biological N2 production in agricultural soil.

Packaging

250 mL and 500 mL quantities are packaged in a 25 mL Sure/Pac cylinder with brass 1/4" male NPT valve. Nominal gas pressures at 21ºC are 135 psig for 250 mL and 275 psig for 500 mL.

Quantities of 1 L and 5 L are packaged in a 450 mL carbon steel lecture bottle with brass CGA 110/180 valve. Nominal gas pressures at 21ºC are 20 psig for I L and 155 psig for 5 L.

Cylinder pressures are slightly above atmospheric pressure. Care must be taken when extracting this product from the cylinder.
All gas volumes are quoted at Standard Temperature and Pressure (STP) and not at Normal Temperature and Pressure (NTP). One STP Liter is 7.7% more gas than one NTP Liter.
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.

Recommended products

PTFE sealing washers GCA inlet size 180 Z146994

PTFE sealing washers CGA inlet size 110 Z146986

Mini gas regulator, brass body, appropriate for 250 ML and 500 ML pack sizes Z513539

Non-corrosive lecture-bottle gas regulator, CGA inlet size 180, appropriate for 1L and 5L pack sizes Z146706

Legal Information

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

hose barb

Product No.
Description
Pricing

Pictograms

Gas cylinder

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Press. Gas Compr. Gas

Storage Class Code

2A - Gases

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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25G
Pack Size/Quantity

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705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

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Customers Also Viewed

Slide 1 of 6

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Producing and dispensing small quantities of 15N2 gas at atmospheric pressure
Diocares R, et al.
Analytical biochemistry, 352(2), 302-304 (2006)
In situ quantification of biological N2 production using naturally occurring 15N15N
Yeung LY, et al.
Environmental Science & Technology, 53(9), 5168-5175 (2019)
Quantitative analysis of the initial transport of fixed nitrogen in nodulated soybean plants using 15N as a tracer
Van Phi Hung N, et al.
Soil Science and Plant Nutrition, 59(6), 888-895 (2013)
Min-Hyung Ryu et al.
Nature microbiology, 5(2), 314-330 (2019-12-18)
Legumes obtain nitrogen from air through rhizobia residing in root nodules. Some species of rhizobia can colonize cereals but do not fix nitrogen on them. Disabling native regulation can turn on nitrogenase expression, even in the presence of nitrogenous fertilizer
Isabell Klawonn et al.
The ISME journal, 13(8), 1960-1974 (2019-03-27)
Ammonium is a central nutrient in aquatic systems. Yet, cell-specific ammonium assimilation among diverse functional plankton is poorly documented in field communities. Combining stable-isotope incubations (15N-ammonium, 15N2 and 13C-bicarbonate) with secondary-ion mass spectrometry, we quantified bulk ammonium dynamics, N2-fixation and

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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