Description

D-[13C5]Xylose is a stable isotope-labeled analog of the pentose sugar D-xylose, where five carbon atoms are replaced with the 13C isotope. This compound is essential as an internal standard for precise quantitative analysis in mass spectrometry-based metabolomic and pharmacokinetic studies. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotechnology, and analytical chemistry industries for advanced tracer studies, metabolic flux analysis, and ensuring the accuracy of complex bioanalytical assays.

Application

• Internal Standard for Mass Spectrometry (MS): Used for the accurate quantification of D-xylose and related metabolites in biological samples via LC-MS or GC-MS.
• Metabolic Pathway Tracer: Enables detailed investigation of the pentose phosphate pathway and carbohydrate metabolism in cellular and in vivo studies.
• Pharmaceutical Research: Critical in drug metabolism and pharmacokinetics (DMPK) studies to track the absorption and metabolism of sugar-based compounds.
• Diagnostic Assay Development: Serves as a reference standard in the calibration of diagnostic kits for intestinal permeability and malabsorption tests.
• Nutritional Science Research: Employed in studies examining the fermentation of dietary fibers and prebiotics by gut microbiota.
• Isotope Labeling in Synthesis: Acts as a labeled building block for the synthesis of more complex 13C-labeled carbohydrates or glycoconjugates.

Basic Information

Product Name	D-[13C5]Xylose
CAS No.	1262683-58-8
Molecular Formula	C5[13C]5H10O5
Molecular Weight	155.10 g/mol (approx.)
Synonyms	(1-13C,2-13C,3-13C,4-13C,5-13C)Xylose; D-Xylose-13C5; [13C5]-D-Xylose; Isotopically Labeled D-Xylose; 13C Labeled Xylose; Xylose-13C5; Stable Isotope of D-Xylose
EINECS	Contact for details

Quality Control

Our D-[13C5]Xylose is manufactured under strict quality control protocols to ensure high isotopic and chemical purity suitable for sensitive analytical applications. Each batch is accompanied by comprehensive analytical data, including isotopic enrichment (Atom % 13C) and chemical purity verified by NMR and HPLC. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive). For long-term storage, consider desiccation or storage under an inert atmosphere to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98%
Isotopic Enrichment	≥ 99 atom % 13C
Specific Optical Rotation	Contact for details
Water Content (KF)	≤ 1.0%

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