Description

2-Butene-1,4-Diol CAS NO 821-11-4 is a versatile bifunctional organic compound containing both hydroxyl and alkene functional groups. This unique structure makes it a valuable intermediate for synthesizing a wide range of polymers, fine chemicals, and specialty materials. It is primarily sought after by manufacturers in the polymer, pharmaceutical, and agrochemical industries for its reactivity and utility as a building block.

Application

• Key intermediate in the synthesis of specialty polymers and resins, including unsaturated polyester resins.
• Building block for pharmaceutical active ingredients and fine chemicals.
• Precursor in the production of corrosion inhibitors and metal surface treatment agents.
• Used in the manufacture of plasticizers and cross-linking agents.
• Intermediate for agrochemicals, such as herbicides and plant growth regulators.
• Starting material for organic synthesis, including Diels-Alder reactions and other cycloadditions.
• Component in the formulation of adhesives and coatings.

Basic Information

Product Name	2-Butene-1,4-Diol
CAS No.	821-11-4
Molecular Formula	C4H8O2
Molecular Weight	88.11 g/mol
Synonyms	1,4-Dihydroxy-2-butene; (E)-2-Butene-1,4-diol; trans-2-Butene-1,4-diol; 2-Butene-1,4-diol (mixed isomers); But-2-ene-1,4-diol; 2-Butenediol; 1,4-Butenediol
EINECS	212-485-8

Quality Control

Our 2-Butene-1,4-Diol is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to guarantee traceability and compliance with your requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.070 - 1.090
Refractive Index (20°C)	1.470 - 1.480

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