Description

S-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 induce chirality and act as a versatile precursor for novel catalysts and ligands. This compound is essential for research and development chemists in the pharmaceutical and fine chemical industries, particularly for the synthesis of enantiomerically pure active pharmaceutical ingredients (APIs) and advanced materials.

Application

• As a chiral resolving agent for the separation of racemic mixtures of amines and other basic compounds.
• As a key precursor for binaphthyl-based chiral catalysts, such as BINOL derivatives and metal complexes used in asymmetric reactions.
• In the research and development of novel pharmaceutical intermediates requiring high enantiomeric purity.
• For the synthesis of chiral ionic liquids and stationary phases for chromatographic separation techniques.
• As a building block in materials science for creating chiral polymers and supramolecular structures with specific optical properties.
• In academic and industrial research focused on asymmetric catalysis and green chemistry methodologies.

Basic Information

Product Name	S-1,1'-Binaphthalene-2,2'-Disulfonic Acid
CAS No.	852127-05-0
Molecular Formula	C₂₀H₁₄O₆S₂
Molecular Weight	414.45 g/mol
Synonyms	(S)-1,1'-Binaphthalene-2,2'-disulfonic Acid; (S)-BINSA; (S)-BINOL-Disulfonic Acid; (S)-1,1'-Bi-2-naphthol-2,2'-disulfonic Acid; (S)-2,2'-Dihydroxy-1,1'-binaphthyl-6,6'-disulfonic Acid; (S)-6,6'-Dihydroxy-5,5'-bi-2-naphthalenesulfonic Acid; (S)-BINOL-6,6'-disulfonic Acid
EINECS	Contact for details

Quality Control

Our S-1,1'-Binaphthalene-2,2'-Disulfonic Acid 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 chiral purity (enantiomeric excess), chemical purity, and identity confirmation. We adhere to relevant industry standards for fine chemical intermediates, and custom synthesis to meet specific pharmaceutical grade or research specifications is available upon request.

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 product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to minimize exposure to atmospheric humidity. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (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.