Description

3-Butenyl Chloroformate is a versatile and reactive chloroformate ester, a key intermediate in organic synthesis. Its primary value lies in its role as a protecting group reagent and a building block for introducing the 3-butenyl moiety into more complex molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, particularly for the synthesis of active pharmaceutical ingredients (APIs) and advanced materials.

Application

• Pharmaceutical Intermediate: A critical reagent in multi-step synthesis for constructing complex drug molecules and active pharmaceutical ingredients (APIs).
• Protecting Group Chemistry: Used to temporarily protect hydroxyl and amine functional groups during complex synthetic sequences.
• Agrochemical Synthesis: Serves as a building block in the production of advanced pesticides, herbicides, and plant growth regulators.
• Polymer & Material Science: Employed in the synthesis of specialty monomers and polymers with tailored properties.
• Peptide Chemistry: Can be utilized in the preparation of modified amino acids and peptide conjugates.
• Cross-coupling Reactions: Acts as a substrate in palladium-catalyzed reactions for carbon-carbon bond formation.

Basic Information

Product Name	3-Butenyl Chloroformate
CAS No.	88986-45-2
Molecular Formula	C5H7ClO2
Molecular Weight	134.56 g/mol
Synonyms	3-Buten-1-yl chloroformate; But-3-enyl chloroformate; Allylacetic acid chloroformate; 3-Butenyl chlorocarbonate; 4-Chloroformyloxy-1-butene; Chloroformic acid 3-butenyl ester; Vinylacetic acid chloromethyl ester (related)
EINECS	Contact for details

Quality Control

Our 3-Butenyl Chloroformate is produced under strict quality control protocols to ensure batch-to-batch consistency and high purity. We adhere to cGMP guidelines where applicable, and our quality management system is designed to meet the stringent requirements of advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at temperatures between 2°C and 8°C (refrigerated) or as specified on the label. This product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Impurities (GC)	≤ 2.0% (total)

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