Description

R-1,1'-Binaphthalene-2,2'-Disulfonic Acid is a specialized chiral sulfonic acid derivative, serving as a high-value intermediate and resolving agent in asymmetric synthesis. Its core value lies in its ability to act as a chiral auxiliary or catalyst for the separation of enantiomers and the synthesis of optically active compounds. This product is essential for research and production in the pharmaceutical, agrochemical, and advanced materials sectors, where precise stereochemistry is critical.

Application

• As a chiral resolving agent for the separation of racemic mixtures of amines, amino acids, and other basic compounds.
• Key intermediate in the synthesis of asymmetric catalysts and ligands for enantioselective transformations.
• Used in pharmaceutical research for the development of single-enantiomer active pharmaceutical ingredients (APIs).
• Precursor for the preparation of chiral ionic liquids and specialty surfactants.
• Employed in analytical chemistry as a chiral selector or additive in chromatographic methods.
• Building block for advanced functional materials with specific optical properties.

Basic Information

Product Name	R-1,1'-Binaphthalene-2,2'-Disulfonic Acid
CAS No.	1092934-18-3
Molecular Formula	C₂₀H₁₄O₆S₂
Molecular Weight	414.45 g/mol
Synonyms	(R)-1,1'-Binaphthyl-2,2'-disulfonic Acid; (R)-BINSA; (R)-BINOL Disulfonic Acid; (R)-1,1'-Bi-2-naphthol-2,2'-disulfonic Acid; (R)-2,2'-Dihydroxy-1,1'-binaphthyl-6,6'-disulfonic Acid; (R)-6,6'-Dihydroxy-5,5'-bi-2-naphthalenesulfonic Acid; (R)-BINOL-6,6'-disulfonic Acid
EINECS	Contact for details

Quality Control

Our R-1,1'-Binaphthalene-2,2'-Disulfonic Acid is produced under strict quality management protocols to ensure high chemical and optical purity. Each batch is characterized by advanced analytical techniques, including HPLC and chiral analysis, to confirm identity, purity, and enantiomeric excess. Certificates of Analysis (COA) with detailed specifications are provided to guarantee consistency and reliability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Water Content (KF)	≤ 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.