Description

L-[1-13C]Xylose is a stable isotope-labeled analog of the pentose sugar D-xylose, where the carbon-1 position is enriched with the non-radioactive carbon-13 isotope. This compound is essential as a precise internal standard and metabolic tracer in advanced research, enabling accurate quantification and detailed pathway analysis. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotechnology, and nutritional science sectors for applications in mass spectrometry, nuclear magnetic resonance (NMR) spectroscopy, and metabolic flux studies.

Application

• Metabolic Research & Flux Analysis: Used as a stable isotopic tracer to study carbohydrate metabolism, pentose phosphate pathway activity, and microbial fermentation processes.
• Biopharmaceutical Development: Serves as a critical tool in the research and quality control of biologic drugs, particularly for analyzing glycosylation patterns and cell culture media components.
• Mass Spectrometry (MS) & NMR Spectroscopy: Functions as an internal standard for the accurate quantification of D-xylose and related metabolites in complex biological matrices.
• Nutritional Science Studies: Employed in clinical and preclinical research to investigate intestinal absorption, gut microbiome function, and dietary fiber metabolism.
• Diagnostic Agent Manufacturing: Used in the development and calibration of diagnostic tests, such as those for assessing intestinal permeability and malabsorption syndromes.
• Biochemical Reagent Production: Incorporated into high-purity reagent kits and standards for enzymatic assays and analytical chemistry.

Basic Information

Product Name	L-[1-13C]Xylose
CAS No.	178101-87-6
Molecular Formula	C5H10O5 (with 13C at position 1)
Molecular Weight	151.13 g/mol (for 13C-labeled form)
Synonyms	1-13C-L-Xylose; L-Xylose-1-13C; (1-13C)-L-Xylose; L-Xylopyranose-1-13C; L-Xylose (1-13C); [1-13C]-L-Xylose; Isotope-labeled L-Xylose; Stable Isotope L-Xylose
EINECS	Contact for details

Quality Control

Every batch of L-[1-13C]Xylose is manufactured and analyzed under strict quality management systems. We guarantee high chemical and isotopic purity, with comprehensive testing including HPLC, NMR, and MS analysis to confirm identity, assay, isotopic enrichment, and the absence of critical impurities. Certificates of Analysis (COA) detailing all specifications are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry, cool place. This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation due to moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Enrichment (MS)	≥ 99 atom % 13C
Water Content (KF)	≤ 1.0%
Specific Optical Rotation	Contact for details
Residue on Ignition	≤ 0.1%

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