Silantes introduces a new isotope labeling strategy for nucleosides and nucleotides: ¹³C-labeling
13C labeled Nucleosides and Nucleotides are now at 15N pricing
This new labeling strategy enables better results at lower costs in quantitative MS and NMR applications.

For quantitative MS,
13C labeling becomes the optimal choice.
Greater mass shift than 15N.
More economical than 13C15N.

For NMR,
13C labeling enables ¹H–¹³C correlation.
Improved resolution and backbone analysis.
Lower costs than 13C15N.
Overview
¹³C-labeling for quantitative MS: The optimized choice

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.

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.

Excellent retention time matching. Better quantification.

Minimal isotope exchange.
Greater confidence.

Superior mass shift robustness.
Cleaner data.

Now priced like 15N. High performance without the premium.
Description | See in shop | |
|---|---|---|
| Adenosine 5′- monophosphate Art #123203101 * Isotopic label: U-13C * Quantity: 1mg | ![]() | ¹³C Price: €60 Order now |
| Cytidine 5′- monophosphate Art #123203102 * Isotopic label: U-13C * Quantity: 1mg | ![]() | ¹³C Price: €50 Order now |
| Guanosine 5′-monophosphate Art #123203103 * Isotopic label: U-13C * Quantity: 1mg | ![]() | ¹³C Price: €50 Order now |
| Uridine 5′-monophosphate Art #123203104 * Isotopic label: U-13C * Quantity: 1mg | ![]() | ¹³C Price: €50 Order now |
¹³C-labeling for NMR: Enables ¹H–¹³C correlation

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.
Discover all 13C nucleosides and nucleotides
| Description | See in shop |
|---|---|
| Adenosine Art #RADO * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €240 Order now |
| Cytidine Art #RYCD * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €180 Order now |
| Guanosine Art #GUO * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €180 Order now |
| Uridine Art #RURD * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €180 Order now |
| Deoxyadenosine Art #DADO * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €430 Order now |
| Deoxycytidine Art #DCYD* Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €330 Order now |
| Deoxyguanosine Art #DGUO * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €330 Order now |
| Thymidine Art #DTHD* Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €330 Order now |
| Adenosine 5′- monophosphate Art #RAMP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €250 Order now |
| Cytidine 5′- monophosphate Art #RCMP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €190 Order now |
| Guanosine 5′-monophosphate Art #RGMP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €190 Order now |
| Uridine 5′-monophosphate Art #RUMP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €190 Order now |
| Deoxyadenosine 5′-monophosphate Art #DAMP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €240 Order now |
| Deoxycytidine 5′-monophosphate Art #DCMP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €180 Order now |
| Deoxyguanosine 5′-monophosphate Art #DGMP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €180 Order now |
| Thymidine 5′-monophosphate Art #DTMP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €180 Order now |
| Adenosine 5′- diphosphate Art #RADP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €580 Order now |
| Cytidine 5′- diphosphate Art #RCDP* Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €440 Order now |
| Guanosine 5′-diphosphate Art #RGDP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €440 Order now |
| Uridine 5′-diphosphate Art #RUDP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €440 Order now |
| Deoxyadenosine 5′-triphosphate Art #DATP* Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €160 Order now |
| Deoxycytidine 5′-triphosphate Art #DCTP* Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €130 Order now |
| Deoxyguanosine 5′-monophosphate Art #DGTP* Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €130 Order now |
| Thymidine 5′-triphosphate Art #DTTP* Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €130 Order now |
| Adenosine 5′- triphosphate Art #RATP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €240 Order now |
| Cytidine 5′-triphosphate Art #RCTP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €180 Order now |
| Guanosine 5′-triphosphate Art #RGTP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €180 Order now |
| Uridine 5′-triphosphate Art #RUTP * Isotopic label: U-13C Available Quantities: 1mg, 5mg, 10mg, 50mg | Pricing example: ¹³C 10mg: €180 Order now |





