Propionyl Chloride

Propionyl Chloride is an aliphatic acyl chloride used to introduce a propionyl group into organic synthesis. It is a colorless liquid with the chemical formula C₃H₅ClO, molecular weight 92.52 g/mol, and CAS No. 79-03-8. The defined CH₃CH₂COCl structure makes it suitable for acylation routes requiring a propionyl functional group.

Chemical Identity
The chemical structure is CH₃CH₂COCl. Common chemical names include Propionyl Chloride, Propanoyl Chloride, and Propionic Acid Chloride.

Product Type
Propionyl Chloride is classified as an Aliphatic Acyl Chloride and is used as a reactive acylating intermediate in organic synthesis.

Propionyl Structure
The CH₃CH₂CO– group provides a direct source of the propionyl moiety for acylation reactions.

Defined Molecular Weight
At 92.52 g/mol, the molecular weight provides a clear basis for molar calculations, reaction charging, and process records.

Volatile Liquid
The normal boiling point of approximately 78 °C is relevant to process design, handling procedures, and equipment selection for liquid-phase operations.

Organic Acylation
Used to introduce propionyl groups into organic molecules during controlled synthesis.

Intermediate Preparation
Applicable to reaction sequences requiring propionyl-functionalized intermediates for further chemical conversion.

Process Manufacturing
Used in laboratory, pilot, and production processes where an aliphatic acyl chloride is required as a reaction reagent.

Propionyl Group
Select Propionyl Chloride when the target molecule requires a propanoyl or propionyl group.

Aliphatic Reaction Route
Its structure fits synthesis routes based on an aliphatic acyl chloride rather than an aromatic acyl chloride.

Charge Calculation
The molecular weight of 92.52 g/mol allows direct conversion between mass and molar quantity for reaction planning and scale-up calculations.

Purity
Required purity should correspond to the reaction sensitivity, downstream process, and approved material specification.

Identity
CAS No., molecular formula, molecular weight, and analytical results provide the primary basis for material verification.

Batch Consistency
Each production batch should be evaluated against the agreed specification before use in the intended process.

Appearance Check
The expected physical form and color can be checked during incoming material inspection.

Identity Testing
Analytical identification confirms that the received material corresponds to the specified chemical identity.

Batch Analysis
A Certificate of Analysis should provide batch-specific results for comparison with the approved specification.

Packaging
Packaging should be selected according to quantity, material compatibility, and applicable chemical transport requirements.

Storage
Storage conditions should follow the current Safety Data Sheet and approved handling procedures.

Transport
Propionyl Chloride is assigned UN 1815. Transport documentation and shipment preparation should follow the applicable dangerous-goods requirements.

Specification
State the required purity, quantity, packaging format, and technical specification when requesting a quotation.

Documentation
Technical documentation may include the product specification, Certificate of Analysis, and Safety Data Sheet.

Quantity
Required volume can be planned according to laboratory evaluation, pilot production, or routine manufacturing demand.

Defined Chemical Profile
CAS No. 79-03-8, molecular formula C₃H₅ClO, and molecular weight 92.52 g/mol provide clear identification for technical evaluation.

Direct Synthetic Role
The product serves as a defined source of the propionyl group in acylation routes.

Procurement-Ready Data
Core identity, physical properties, transport classification, and batch documentation requirements support technical qualification and purchasing review.

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