Description

2-Butyne-1,4-Diol, Monoacetate is a specialized acetylated derivative of 2-butyne-1,4-diol, a key building block in organic synthesis. This compound is valued for its bifunctional reactivity, offering both an acetyl-protected hydroxyl group and a terminal alkyne, which makes it a versatile intermediate for constructing more complex molecular architectures. It is primarily sought by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty polymer industries for applications requiring selective modifications and controlled reactions.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the production of active pharmaceutical ingredients (APIs), particularly those requiring alkyne functionalization for click chemistry or coupling reactions.
• Agrochemical Synthesis: Used in the manufacture of advanced crop protection agents and herbicides, where its molecular structure contributes to specific biological activity.
• Polymer & Resin Modifier: Acts as a cross-linking agent or chain extender in the synthesis of specialty polymers, coatings, and adhesives, enhancing thermal or mechanical properties.
• Organic Synthesis Building Block: Employed in laboratory-scale and industrial organic synthesis for the preparation of complex molecules, including natural product analogs and fine chemicals.
• Corrosion Inhibitor Formulation: Utilized as a component in formulations designed to protect metals, particularly in closed cooling water systems or industrial process fluids.
• Electroplating Additive: Functions as a brightening agent or leveler in electroplating baths to improve the quality and appearance of metal deposits.

Basic Information

Product Name	2-Butyne-1,4-Diol, Monoacetate
CAS No.	83466-88-0
Molecular Formula	C6H8O3
Molecular Weight	128.13 g/mol
Synonyms	2-Butyne-1,4-diol monoacetate; 1,4-Dihydroxy-2-butyne monoacetate; 4-Acetoxy-2-butyn-1-ol; 2-Butyn-1,4-diol, 1-acetate; Monoacetate of 2-Butyne-1,4-diol; 4-Hydroxy-2-butynyl acetate; But-2-yne-1,4-diol monoacetate
EINECS	Contact for details

Quality Control

Our 2-Butyne-1,4-Diol, Monoacetate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing specifications such as assay, identity (IR), and impurity profile is provided and available upon request, supporting 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 away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. The container should be kept tightly sealed when not in use to minimize exposure to moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.080 - 1.120
Refractive Index (20°C)	1.450 - 1.470

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