Description

(S)-2,2'-Binaphthyl-17-Crown-5 is a chiral crown ether derivative, distinguished by its binaphthyl backbone and 17-membered polyether ring. This compound matters as a highly selective and efficient chiral phase-transfer catalyst and molecular receptor, enabling enantioselective synthesis and ion recognition. It is needed by researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for developing chiral intermediates, conducting asymmetric catalysis, and creating sophisticated sensor systems.

Application

• Asymmetric Synthesis: As a chiral phase-transfer catalyst for enantioselective alkylation, epoxidation, and Michael addition reactions.
• Chiral Resolution: For the separation and analysis of enantiomers in analytical chemistry and preparative-scale purification.
• Ion-Selective Sensors: As a key component in the development of electrochemical and optical sensors for specific alkali and alkaline earth metal cations.
• Pharmaceutical Intermediates: In the synthesis of optically active drug candidates and active pharmaceutical ingredients (APIs).
• Material Science: Incorporation into chiral stationary phases for HPLC and into advanced polymeric materials for selective membranes.
• Fundamental Research: As a model compound in supramolecular chemistry and host-guest interaction studies.

Basic Information

Product Name	(S)-2,2'-Binaphthyl-17-Crown-5
CAS No.	55442-01-8
Molecular Formula	C₃₄H₃₂O₅
Molecular Weight	520.62 g/mol
Synonyms	(S)-(-)-2,2'-Binaphthyl-17-crown-5; (S)-1,1'-Bi-2-naphthol 17-crown-5 ether; (S)-BINOL-17-Crown-5; (S)-1,1'-Binaphthalene-2,2'-diyl 17-crown-5; (S)-BNC-17-C-5; (S)-Chiral Binaphthyl Crown Ether; (S)-2,2'-Dihydroxy-1,1'-binaphthyl 17-crown-5 ether; (S)-17-Crown-5 Binaphthyl Ether
EINECS	Contact for details

Quality Control

Our (S)-2,2'-Binaphthyl-17-Crown-5 is produced under strict quality management protocols to ensure high chiral purity and chemical consistency. Each batch is characterized by advanced analytical techniques, including chiral HPLC, to confirm enantiomeric excess and chemical identity. Certificates of Analysis (COA) detailing purity, specific rotation, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is light-sensitive and should be handled under inert atmosphere when appropriate to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Specific Rotation [α]₂₀D	Contact for details
Loss on Drying	≤ 0.5%

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