Description

3,4-o-Benzylidene-D-Ribonic δ-Lacton CAS NO 20603-45-6 is a specialized chiral lactone derivative, serving as a crucial synthetic intermediate and building block in advanced organic chemistry. Its value lies in its unique benzylidene-protected ribonic acid structure, which is essential for constructing complex molecules with precise stereochemistry. This high-purity compound is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and fine chemical sectors for developing novel active ingredients and chiral catalysts.

Application

• Pharmaceutical Intermediate: Key chiral building block for the synthesis of nucleoside analogs, antiviral agents, and other bioactive molecules.
• Agrochemical Research: Used in developing novel, stereospecific pesticides and herbicides.
• Fine Chemical Synthesis: Serves as a precursor for specialty chemicals, flavors, and fragrances requiring specific stereochemistry.
• Catalyst Ligand Development: Employed in the research and preparation of chiral ligands for asymmetric catalysis.
• Academic & R&D: A valuable reagent for methodological studies in carbohydrate chemistry and stereoselective synthesis.
• Bioconjugate Chemistry: Potential use in creating labeled probes or targeted delivery systems due to its functionalizable structure.

Basic Information

Product Name	3,4-o-Benzylidene-D-Ribonic δ-Lacton
CAS No.	20603-45-6
Molecular Formula	C12H12O5
Molecular Weight	236.22 g/mol
Synonyms	3,4-O-Benzylidene-D-ribono-1,5-lactone; D-Ribono-1,5-lactone, 3,4-O-(phenylmethylene)-; 3,4-O-Benzylidene-D-ribonolactone; 3,4-O-(Phenylmethylene)-D-ribono-1,5-lactone; Benzylidene-D-ribonolactone; 20603-45-6; (3aR,5R,6S,6aR)-6-(Hydroxymethyl)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-ol (related structure)
EINECS	Contact for details

Quality Control

Our 3,4-o-Benzylidene-D-Ribonic δ-Lacton is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and chiral analysis to ensure stereochemical integrity, meeting the stringent requirements for research and process development. Certificates of Analysis (COA) with full specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Optical Rotation [α]	Contact for details
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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