Initial Dissolution Method of N-acetyl Caprolactam

Basic Information of N-acetylcaprolactam:

Common Name:N-Acetylcaprolactam

CAS No.:1888-91-1

EINECS:217-565-6

Molecular Formula:C₈H₁₃NO₂

Molecular Weight:155.19

Chromatographic Purity:≥98.0%

Primary Function: This product is primarily used as an intermediate in organic synthesis and pharmaceutical manufacturing, serving both laboratory R&D and industrial chemical production.

N-Acetylcaprolactam (CAS: 1888-91-1) is a medium-polarity liquid intermediate widely used in pharmaceutical synthesis, polyamide modification, and specialty chemical applications. To ensure reaction efficiency and system stability, proper pre-dissolution (initial solubilization) is essential prior to use.

Below are our recommended solvent systems, concentration guidelines, and handling tips for optimal results.

1. Recommended Solvents for Pre-Dissolution

N-Acetylcaprolactam dissolves readily in a variety of organic solvents. The table below summarizes preferred options based on application needs:

Operational Tips:

Add the solvent slowly to N-Acetylcaprolactam at room temperature with gentle stirring to obtain a clear, homogeneous solution.

If slight turbidity occurs, warm the mixture to no more than 60°C to accelerate dissolution.

Always verify compatibility and stability of the solvent system with your downstream reaction before scale-up.

2. Recommended Concentration Ranges

3. Solvents to Avoid

The following solvents are not recommended for dissolving N-Acetylcaprolactam due to poor compatibility:

Water – Low solubility, may cause phase separation or precipitation.

Low-polarity alkanes (e.g., petroleum ether, hexane) – Poor dispersing ability, leading to non-uniform mixtures.

4. Storage & Handling Guidelines for Prepared Solutions

Store prepared solutions in sealed, airtight containers in a cool, dry place away from light.

Avoid contact with strong oxidizers and elevated temperatures.

For best performance, use the prepared solution within 24 hours of preparation.

Always wear appropriate personal protective equipment (PPE) – including gloves and safety goggles – when handling.