Description

Urea-13C CAS NO 58069-82-2 is a stable isotope-labeled analog of urea, where the carbon atom is the non-radioactive carbon-13 isotope. This compound is essential for advanced analytical and research applications requiring precise molecular tracing and quantification. It is a critical reagent for scientists and quality control professionals in pharmaceutical development, clinical diagnostics, and metabolic research who require the highest standards of isotopic purity and chemical stability.

Application

• Internal Standard in Mass Spectrometry: Used as a quantitative reference standard in LC-MS and GC-MS analysis for accurate measurement of urea levels in biological samples.
• Metabolic Pathway Tracing: Employed in 13C-NMR spectroscopy and isotope ratio mass spectrometry to study nitrogen metabolism and urea cycle dynamics in plants, animals, and microorganisms.
• Pharmaceutical Research & Development: Serves as a labeled precursor in the synthesis of isotopically labeled drug molecules for pharmacokinetic and metabolic stability studies.
• Clinical Diagnostics: Utilized in the calibration and development of in-vitro diagnostic tests for accurately determining blood urea nitrogen (BUN) and renal function markers.
• Environmental & Agricultural Science: Applied in studies of soil nitrogen cycling, fertilizer uptake efficiency, and environmental fate of nitrogenous compounds.
• Food & Beverage Analysis: Acts as a standard for authenticity testing and quality control in food products where urea or its derivatives may be present.

Basic Information

Product Name	Urea-13C
CAS No.	58069-82-2
Molecular Formula	13CH4N2O
Molecular Weight	61.05 g/mol
Synonyms	Carbamide-13C; Carbon-13 Labeled Urea; [13C]Urea; Urea (13C); Isotopic Urea; Urea-13C; (13C)Urea; Urea (13C)
EINECS	Contact for details

Quality Control

Our Urea-13C is manufactured under controlled conditions to ensure exceptional isotopic and chemical purity. Each batch is subjected to rigorous analytical testing, including NMR, HPLC, and mass spectrometry, to confirm identity, isotopic enrichment (typically >99 atom % 13C), and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your research and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed in a dry environment to prevent absorption of atmospheric moisture, which can affect stability and analytical performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Isotopic Enrichment	≥ 99 atom % 13C
Water Content (KF)	≤ 0.5 %
Residue on Ignition	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.