Description

S-218 CAS NO 33522-81-5 is a specialized chemical intermediate known for its unique reactivity profile. This compound is valued for its role in facilitating complex synthetic pathways, particularly in the production of high-performance materials and active pharmaceutical ingredients. It serves as a critical building block for research and manufacturing sectors requiring precise molecular control, including the pharmaceutical, agrochemical, and advanced polymer industries.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel active pharmaceutical ingredients (APIs) and fine chemicals.
• Agrochemical Synthesis: Used in the manufacturing of advanced pesticides, herbicides, and plant growth regulators.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for creating specialty polymers with enhanced thermal or mechanical properties.
• Organic Synthesis & Research: A versatile reagent in academic and industrial R&D laboratories for constructing complex organic molecules.
• Dye & Pigment Manufacturing: Intermediate in the production of specialized colorants and functional dyes.
• Electronics Chemicals: Potential use in the synthesis of materials for electronic applications, such as organic semiconductors.

Basic Information

Product Name	S-218
CAS No.	33522-81-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	1,3-Dioxolane-2-acetic acid, 4-(phenylmethyl)-; S 218; S-218; 4-Benzyl-1,3-dioxolane-2-acetic acid; 33522-81-5; 4-Benzyl-2-carboxymethyl-1,3-dioxolane
EINECS	Contact for details

Quality Control

Our S-218 is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling. Certificates of Analysis (COA) detailing all test results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%

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