Description

Crotonaldehyde is a highly reactive, unsaturated aldehyde with the CAS number 123-73-9, serving as a versatile and critical building block in organic synthesis. Its value lies in its conjugated carbonyl system, which makes it an essential intermediate for manufacturing fine chemicals, pharmaceuticals, and agrochemicals. This product is primarily needed by chemical manufacturers in the pharmaceutical, fragrance, and polymer industries for producing sorbic acid, vitamin A, and various resins.

Application

• Chemical Intermediate: A key precursor in the synthesis of sorbic acid and potassium sorbate, widely used as food preservatives.
• Pharmaceutical Synthesis: Serves as a crucial building block for the production of vitamin A, quinolines, and other active pharmaceutical ingredients (APIs).
• Agrochemical Production: Used in the manufacture of pesticides, herbicides, and plant growth regulators.
• Resin & Polymer Industry: Acts as a monomer or cross-linking agent in the production of specialty polymers and resins.
• Fragrance & Flavoring: Employed in the synthesis of various aroma chemicals and flavoring agents.
• Organic Synthesis: Utilized in Diels-Alder reactions, aldol condensations, and other transformations to create complex organic molecules.
• Corrosion Inhibitors: A component in formulations designed to protect metals in industrial processes.
• Research & Development: Used in laboratories for method development and as a reagent in academic and industrial research.

Basic Information

Product Name	Crotonaldehyde
CAS No.	123-73-9
Molecular Formula	C4H6O
Molecular Weight	70.09 g/mol
Synonyms	2-Butenal; Crotonic Aldehyde; β-Methylacrolein; Propylene Aldehyde; (E)-2-Butenal; trans-Crotonaldehyde; 1-Formylpropene; 3-Methylacrolein; Topanel
EINECS	204-647-1

Quality Control

Our Crotonaldehyde is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with ISO 9001 standards, and we support compliance with global regulatory frameworks including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) to maintain product integrity. Keep away from strong oxidizers, strong bases, and reducing agents. Recommended storage temperature: 2-8°C.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acidity (as Acetic Acid)	≤ 0.1%

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