Description

2-Isocyanato-1,1-dimethoxyethane is a specialized aliphatic isocyanate derivative, also known by its CAS number 71189-22-5. This compound serves as a versatile and reactive building block, enabling the synthesis of functional polymers and fine chemicals through its isocyanate group. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials industries for developing novel urethane linkages, coatings, and bioactive molecules.

Application

• Pharmaceutical Intermediates: Key building block for synthesizing active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring urethane or urea functional groups.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and pesticides where its reactivity facilitates the creation of novel bioactive compounds.
• Polymer & Resin Modification: Acts as a cross-linking agent or chain extender in polyurethane, polyurea, and other specialty polymer systems to modify flexibility, adhesion, or chemical resistance.
• Surface Coatings & Adhesives: Imparts durability and specific performance characteristics in high-performance industrial coatings, sealants, and adhesive formulations.
• Chemical Research & Development: A valuable reagent for organic synthesis, enabling the introduction of protected aldehyde or acetal functionalities via subsequent transformations.
• Specialty Fine Chemicals: Employed in the manufacture of dyes, pigments, and other performance chemicals requiring specific isocyanate chemistry.

Basic Information

Product Name	2-Isocyanato-1,1-dimethoxyethane
CAS No.	71189-22-5
Molecular Formula	C5H9NO3
Molecular Weight	131.13 g/mol
Synonyms	1,1-Dimethoxy-2-isocyanatoethane; Acetaldehyde Dimethyl Acetal, 2-Isocyanato-; 2-Isocyanatoacetaldehyde Dimethyl Acetal; Isocyanatoacetaldehyde Dimethyl Acetal; NSC 163491; (Dimethoxymethyl)methyl isocyanate
EINECS	Contact for details

Quality Control

Our 2-Isocyanato-1,1-dimethoxyethane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including assay by titration and impurity profile analysis by GC/HPLC, to ensure high purity and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance protocols.

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 an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/Titration)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Impurities (GC/HPLC)	Reported on COA
Density (at 20°C)	~1.08 g/cm³

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