Description

S 657 CAS NO 125005-87-0 is a specialized chemical intermediate designed for high-performance synthesis. This compound is valued for its precise reactivity and purity, which are critical for advanced manufacturing processes. It is essential for research and development laboratories, pharmaceutical synthesis, and the production of fine chemicals where consistent quality is paramount.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates.
• Fine Chemical Synthesis: Used in the production of complex organic molecules for agrochemicals, dyes, and specialty materials.
• Research & Development: Serves as a crucial reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways.
• Material Science: Potential applications in the development of advanced polymers, liquid crystals, or electronic materials.
• Catalyst Ligand Precursor: May be utilized in the preparation of ligands for catalytic systems in asymmetric synthesis.

Basic Information

Product Name	S 657
CAS No.	125005-87-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	S-657; S657; 1,3-Dioxolane-4,5-dimethanol, 2,2-dimethyl-; 2,2-Dimethyl-1,3-dioxolane-4,5-dimethanol; 4,5-Bis(hydroxymethyl)-2,2-dimethyl-1,3-dioxolane; (4R,5R)-(-)-2,2-Dimethyl-α,α,α',α'-tetramethyl-1,3-dioxolane-4,5-dimethanol; Solketal derivative
EINECS	Contact for details

Quality Control

Our S 657 is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identity confirmation and purity assessment via chromatographic methods. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 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 solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
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.