Description

α-L-Xylopyranose (9Ci) is a specific stereoisomer of the pentose sugar xylose, distinguished by its L-configuration and pyranose ring structure. This compound is a valuable chiral building block and reference standard in carbohydrate chemistry research and development. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors for applications such as glycosylation studies, enzyme substrate profiling, and the synthesis of complex bioactive molecules.

Application

• Pharmaceutical Research: As a chiral intermediate or precursor in the synthesis of nucleoside analogs, glycoconjugates, and other therapeutic agents.
• Biochemical Studies: Serving as a substrate or inhibitor for studying the activity and specificity of glycosidases, glycosyltransferases, and other carbohydrate-processing enzymes.
• Analytical Reference Standard: Used for method development, calibration, and quality control in chromatographic (HPLC, GC) and spectroscopic analyses within analytical laboratories.
• Glycochemistry & Glycobiology: A fundamental building block for the chemical and enzymatic synthesis of oligosaccharides, glycopolymers, and neoglycoconjugates for structural and functional studies.
• Fine Chemical Synthesis: Employed as a starting material for the production of specialty chemicals, flavors, or fragrances that require specific sugar-derived chirality.

Basic Information

Product Name	α-L-Xylopyranose (9Ci)
CAS No.	7296-58-4
Molecular Formula	C5H10O5
Molecular Weight	150.13 g/mol
Synonyms	L-Xylopyranose; α-L-Xylopyranose; L-Xylose (pyranose form); (2R,3S,4R,5R)-Oxane-2,3,4,5-tetrol; 7296-58-4; L-Xylose, cyclic form
EINECS	Contact for details

Quality Control

Our α-L-Xylopyranose is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) providing results for assay, optical rotation, and impurity profiles (by HPLC) is supplied with every shipment to support your research and quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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