Description

(R)-(+)-Dimethyl-2 2'-Dihydroxy-1 1'-Binaphthyl is a high-purity, enantiomerically pure binaphthyl derivative, a crucial chiral auxiliary and ligand in asymmetric synthesis. Its value lies in its ability to induce high stereoselectivity in a wide range of catalytic and stoichiometric organic transformations, directly impacting the efficiency and cost of producing single-enantiomer compounds. This product is essential for R&D and production chemists in the pharmaceutical, agrochemical, and fine chemical industries who require reliable, high-performance chiral building blocks.

Application

• Asymmetric Catalysis: Serving as a precursor for chiral phosphine and diamine ligands used in hydrogenation, cross-coupling, and other transition metal-catalyzed reactions.
• Chiral Resolution: Acting as a resolving agent for the separation of racemic mixtures of acids, amines, and other functional compounds.
• Pharmaceutical Intermediates: A key building block in the synthesis of active pharmaceutical ingredients (APIs) that require specific stereochemistry for efficacy.
• Material Science: Utilized in the development of chiral stationary phases for HPLC and in the synthesis of chiral polymers and liquid crystals.
• Agrochemical Synthesis: Employed in the production of enantiomerically pure herbicides, fungicides, and plant growth regulators.
• Academic & Industrial R&D: A fundamental tool for methodological development in organic and organometallic chemistry laboratories worldwide.

Basic Information

Product Name	(R)-(+)-Dimethyl-2 2'-Dihydroxy-1 1'-Binaphthyl
CAS No.	18531-91-4
Molecular Formula	C22H18O2
Molecular Weight	314.38 g/mol
Synonyms	(R)-(+)-1,1'-Bi-2-naphthol; (R)-(+)-BINOL; (R)-1,1'-Bi-2-naphthol; (R)-(+)-1,1'-Binaphthalene-2,2'-diol; (R)-2,2'-Dihydroxy-1,1'-binaphthyl; (R)-Binaphthol; (R)-BINOL; (R)-(+)-Dimethyl BINOL (common misnomer for derivatives)
EINECS	Contact for details

Quality Control

Every batch of our (R)-(+)-Dimethyl-2 2'-Dihydroxy-1 1'-Binaphthyl is produced under strict quality management protocols. We guarantee high chemical and optical purity, with specifications typically meeting or exceeding the requirements for advanced synthetic applications. Certificates of Analysis (COA) detailing identity, purity (HPLC), specific rotation, and impurity profiles are provided with each shipment to ensure full traceability and compliance with your internal quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The compound is light-sensitive; prolonged exposure to light should be avoided to maintain stability and enantiomeric purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (HPLC)	≥ 99.0%
Specific Rotation [α]D20	+34.0° to +36.0° (c=1 in THF)
Melting Point	205 - 210 °C
Loss on Drying	≤ 0.5%

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