Description

Benzoic Acid, 2-Hydroxy-5-Isocyanato-, Ethyl Ester (9Ci) is a specialized aromatic isocyanate derivative, serving as a versatile and reactive chemical building block for advanced synthesis. Its molecular structure, featuring both a phenolic hydroxyl and an isocyanate group, makes it a critical intermediate for creating high-performance polymers and functional materials. This compound is essential for R&D and production in sectors demanding tailored chemical properties, such as specialty adhesives, coatings, and pharmaceutical intermediates. CAS No. 150129-30-9.

Application

This reactive intermediate is designed for advanced chemical synthesis, enabling the development of materials with specific performance characteristics.

• Polyurethane Precursor: Key monomer for synthesizing specialized polyurethane resins with enhanced adhesion, chemical resistance, or UV stability for high-performance coatings and adhesives.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs), particularly those requiring a benzoic acid or phenolic urethane scaffold.
• Crosslinking Agent: Functions as a crosslinker in polymer systems, such as epoxy or acrylic resins, to improve thermal and mechanical properties in composite materials.
• Specialty Chemical Synthesis: Serves as a building block for agrochemicals, dyes, and other fine chemicals where the introduction of a urethane linkage is required.
• Surface Modification: Utilized to graft functional groups onto material surfaces (e.g., silica, polymers) to alter surface energy, biocompatibility, or reactivity.

Basic Information

Item	Detail
Product Name	Benzoic Acid, 2-Hydroxy-5-Isocyanato-, Ethyl Ester (9Ci)
CAS No.	150129-30-9
Molecular Formula	C10H9NO4
Molecular Weight	207.18 g/mol
Synonyms	5-Isocyanato-2-hydroxybenzoic Acid Ethyl Ester; Ethyl 5-Isocyanato-2-hydroxybenzoate; Ethyl 2-Hydroxy-5-isocyanatobenzoate; 2-Hydroxy-5-isocyanatobenzoic Acid Ethyl Ester; Salicylic Acid, 5-Isocyanato-, Ethyl Ester; NSC 405124; AI3-52362
EINECS	Contact for details

Quality Control

Our production of Benzoic Acid, 2-Hydroxy-5-Isocyanato-, Ethyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and titration for isocyanate content, to ensure consistency and reliability for your synthetic processes. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent degradation from moisture. Recommended storage temperature is 2-8°C for long-term stability. Isocyanate-containing materials should be stored separately from alcohols, amines, and other nucleophiles.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Isocyanate Content (Titration)	≥ 20.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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