Description

2-Butyne-1,4-Diol is a versatile industrial chemical intermediate characterized by its terminal diol and alkyne functionalities. This unique structure makes it a valuable building block for synthesizing a wide range of specialty chemicals, including corrosion inhibitors, brighteners, and polymers. It is essential for manufacturers in the electroplating, pharmaceutical, and polymer industries seeking to enhance product performance and develop new materials.

Application

• Electroplating & Metal Finishing: A key intermediate in the production of brightening and leveling agents for nickel and other metal plating baths.
• Corrosion Inhibition: Used in the synthesis of high-performance corrosion inhibitors for industrial cooling water systems and metalworking fluids.
• Polymer & Resin Production: Serves as a monomer or cross-linking agent in the manufacture of specialty polyesters, polyurethanes, and alkyd resins.
• Pharmaceutical Intermediates: Acts as a crucial building block in the synthesis of various active pharmaceutical ingredients (APIs) and vitamin precursors.
• Chemical Synthesis: Utilized in organic synthesis for producing fine chemicals, agrochemicals, and other derivatives like 1,4-Butanediol.
• Photographic Chemicals: Employed in the production of certain photographic developers and sensitizers.

Basic Information

Product Name	2-Butyne-1,4-Diol
CAS No.	110-65-6
Molecular Formula	C₄H₆O₂
Molecular Weight	86.09 g/mol
Synonyms	But-2-yne-1,4-diol; 1,4-Dihydroxy-2-butyne; 2-Butyne-1,4-diol; 2-Butynediol; 1,4-Butynediol; Butynediol; Acetylenedimethanol; 1,4-Butynediol (2-Butyne-1,4-diol)
EINECS	203-788-6

Quality Control

Our 2-Butyne-1,4-Diol is produced under stringent quality management systems to ensure batch-to-batch consistency and reliability. We provide comprehensive quality assurance, with product specifications meeting the requirements for industrial and fine chemical applications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is available for every batch upon request.

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). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 98.0%
Melting Point	54 - 58 °C
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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