Don’t label what you don’t need.
Make the­ 13C Shift!

Graphic: 13C labeling, the new choice for LC/MS and NMR

Don’t label what you don’t need.

Make the­ 13C Shift!

Graphic: 13C labeling, the new choice for LC/MS and NMR

13C labeled Nucleosides and Nucleotides are now at 15N pricing


Icon NMR white and without background
Icon NMR white and without background 1

¹³C-labeling for quantitative MS: The optimized choice

Banner 13C for qMS V2

Stable isotope-labeled nucleosides and nucleotides are essential tools for confident quantitation and characteri­zation in mass spectrometry workflows. While ¹⁵N-labeling has long been used as a cost-efficient solution and ¹³C¹⁵N-labeling provides maximum mass separation, we now introduce ¹³C-labeling as the optimal balance of analytical performance, workflow simplicity, and cost efficiency.

¹³C-labeled nucleosides and nucleotides are becoming the optimal choice for quantitative mass spectrometry.

13C10 Adenosine - diagram

Make the ¹³C Shift and experience the benefits of:

  • More analytical confidence than ¹⁵N-labeling
    Exemplary for adenosine:
    Adenosine contains twice as many carbon atoms as nitrogen atoms (10 vs. 5). The 13C-shift leads to
    • better separation from the unlabeled analyte isotope envelope
    • lower risk of interference from natural isotope peaks
    • more confident peak assignment
    • improved quantitative robustness in complex biological matrices
  • More economical than ¹³C¹⁵N-labeling
    Exemplary for adenosine:
    For many LC-MS/MS applications, the additional +5 Da mass shift provided by ¹⁵N labeling on top of ¹³C is not required.

With ¹³C nucleosides and nucleotides now available at ¹⁵N pricing, Silantes enables researchers to upgrade their MS workflows in the fields of isotopologue profiling, metabolic flux analysis, pulse-chase labeling and tracing metabolomics with improved mass discrimination and higher analytical confidence — without increasing costs.

Relative price levels comparison of the isotope prices
ASMS Poster 13C Nucleotides 7

Excellent retention time matching. Better quantification.

ASMS Poster 13C Nucleotides 8

Minimal isotope exchange.
Greater confidence.

ASMS Poster 13C Nucleotides 9

Superior mass shift robustness.
Cleaner data.

ASMS Poster 13C Nucleotides 6

Now priced like 15N. High performance without the premium.


Description
See in shop
Adenosine 5′- monophosphate
Art #123203101 * Isotopic label: U-13C * Quantity: 1mg
Adenosine 5'- monophosphate¹³C Price: €60
Order now
Cytidine 5′- monophosphate
Art #123203102 * Isotopic label: U-13C * Quantity: 1mg
Cytidine 5'- monophosphate¹³C Price: €50
Order now

Guanosine 5′-monophosphate
Art #123203103 * Isotopic label: U-13C * Quantity: 1mg
Guanosine 5'-monophosphate¹³C Price: €50
Order now

Uridine 5′-monophosphate
Art #123203104 * Isotopic label: U-13C * Quantity: 1mg
Uridine 5'-monophosphate¹³C Price: €50
Order now

Discover all 13C-labeled nucleotides and nucleosides

¹³C-labeling for NMR: Enables ¹H–¹³C correlation

Banner 13C for NMR V2

Stable isotope-labeled nucleotides are essential tools for advancing RNA and DNA NMR spectroscopy, enabling precise resonance assignment and deeper insights into structure, dynamics, and molecular interactions. The right labeling strategy can improve spectral resolution while keeping research costs under control.

Unlock new possibilities in RNA and DNA NMR with ¹³C-labeled nucleosides and nucleotides.
Improve resonance assignment through ¹H–¹³C correlation experiments.
Gain insights into ribose conformations and RNA backbone dynamics.
Choose carbon labeling when nitrogen labeling is not required.
Achieve these benefits at the same price as ¹⁵N labeling.

Make the ¹³C Shift and experience the benefits of:

Enhanced RNA NMR assignments: ¹³C labeling enables ¹H–¹³C correlation experiments for improved spectral resolution and more reliable assignment of ribose resonances, supporting the analysis of RNA backbone dynamics and structure.

Cost-effective labeling strategy: Get the benefits of carbon labeling at the same price as ¹⁵N labeling and approximately half the cost of ¹³C,¹⁵N labeling when nitrogen labeling is not required.

Relative price levels comparison of the isotope prices

Discover all 13C nucleosides and nucleotides