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316830

Sigma-Aldrich

Urea-15N2

98 atom % 15N, 99% (CP)

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Synonym(s):
15N Labeled Urea, 15N Labeled urea, Carbamide-15N2, Carbonyldiamide-15N2
Linear Formula:
H215NCO15NH2
CAS Number:
Molecular Weight:
62.04
MDL number:
PubChem Substance ID:
NACRES:
NA.12

isotopic purity

98 atom % 15N

Quality Level

assay

99% (CP)

form

solid

mp

132-135 °C (lit.)

application(s)

agriculture

mass shift

M+2

SMILES string

[15NH2]C([15NH2])=O

InChI

1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)/i2+1,3+1

InChI key

XSQUKJJJFZCRTK-SUEIGJEOSA-N

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1 of 4

This Item
490989490962490970
vibrant-m

316830

Urea-15N2

vibrant-m

490989

Urea-15N2

vibrant-m

490962

Urea-15N2

vibrant-m

490970

Urea-15N2

mass shift

M+2

mass shift

M+2

mass shift

M+2

mass shift

M+2

isotopic purity

98 atom % 15N

isotopic purity

60 atom % 15N

isotopic purity

5 atom % 15N

isotopic purity

≥10 atom % 15N

assay

99% (CP)

assay

99% (CP)

assay

99% (CP)

assay

≥96% (CP)

mp

132-135 °C (lit.)

mp

132-135 °C (lit.)

mp

132-135 °C (lit.)

mp

132-135 °C (lit.)

form

solid

form

solid

form

-

form

-

General description

Urea-15N2 enriched with 15N isotope.

Application

Urea-15N2 is used
  • In agriculture research as a technique to determine uptake or denitrification and leaching losses of native soil N via the “added N interaction".
  • In horticulture, massive labeling of trees to ascertain that N originating from 15N leaf labeling.

Packaging

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


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Melissa Scholefield et al.
Frontiers in molecular neuroscience, 14, 711396-711396 (2021-11-10)
Widespread elevations in brain urea have, in recent years, been reported in certain types of age-related dementia, notably Alzheimer's disease (AD) and Huntington's disease (HD). Urea increases in these diseases are substantive, and approximate in magnitude to levels present in
Xu Zhao et al.
Journal of agricultural and food chemistry, 64(15), 3017-3024 (2016-03-30)
The nitrogen (N) isotope method reveals that application of fertilizer N can increase crop uptake or denitrification and leaching losses of native soil N via the "added N interaction". However, there is currently little evidence of the impact of added
Sungchul Kim et al.
Nature, 579(7797), 141-145 (2020-02-23)
CRISPR-Cas immunity protects prokaryotes against invading genetic elements1. It uses the highly conserved Cas1-Cas2 complex to establish inheritable memory (spacers)2-5. How Cas1-Cas2 acquires spacers from foreign DNA fragments (prespacers) and integrates them into the CRISPR locus in the correct orientation

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