Description

L-Xylopyranose (9Ci) CAS NO 19982-83-3 is a specialized monosaccharide derivative, specifically the L-enantiomer of xylose, serving as a crucial chiral building block and reference standard in advanced research and synthesis. Its distinct stereochemistry makes it invaluable for investigating carbohydrate metabolism, enzyme specificity, and for the development of novel pharmaceuticals and bioactive compounds. This high-purity chemical is essential for researchers and manufacturers in pharmaceutical development, biotechnology, and fine chemical synthesis who require precise stereochemical control.

Application

• Pharmaceutical Intermediate: Used as a chiral precursor in the synthesis of nucleoside analogs, antiviral drugs, and other therapeutic agents.
• Biochemical Research: Serves as a standard and substrate in enzymatic studies, metabolic pathway analysis, and glycobiology research.
• Glycoconjugate Synthesis: A key starting material for the preparation of complex oligosaccharides, glycopeptides, and other biologically active glycoconjugates.
• Food & Flavor Science: Employed in research related to rare sugars, sweeteners, and the study of Maillard reaction pathways for flavor development.
• Diagnostic Reagent Manufacturing: Used in the formulation of specialized culture media and diagnostic kits for microbiological and clinical testing.
• Cosmetic Science: Investigated for potential applications in skin moisturization and as a humectant in advanced cosmetic formulations.

Basic Information

Product Name	L-Xylopyranose (9Ci)
CAS No.	19982-83-3
Molecular Formula	C5H10O5
Molecular Weight	150.13 g/mol
Synonyms	L-Xylose; (2S,3R,4S)-2,3,4,5-Tetrahydroxypentanal; L-(-)-Xylose; L-Xylopyranose; 19982-83-3; L-Xyl
EINECS	Contact for details

Quality Control

Our L-Xylopyranose is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, optical rotation, and impurity profiles. We adhere to relevant industry standards for fine chemicals, and specifications can be aligned with customer requirements for research or cGMP applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic and easily oxidized nature, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation and to minimize moisture uptake. Keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]20/D	-75° to -85° (c=1 in H2O)
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%

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