Introduction

2-Chlorobenzaldehyde (CAS 89-98-5), also known as ortho-chlorobenzaldehyde, is a chlorinated aromatic aldehyde that serves as a critical intermediate across multiple industries. With both an aldehyde group and a chlorine atom positioned at the ortho site of the benzene ring, this compound offers unique bifunctional reactivity that makes it valuable for synthesizing pharmaceuticals, agrochemicals, dyes, and electroplating brighteners.

Unlike many solid chlorinated benzaldehydes, 2-chlorobenzaldehyde is a liquid at room temperature (melting point 9-11°C), which influences its handling, storage, and downstream processing. This article provides a comprehensive overview of its properties, key applications, quality specifications, and procurement considerations.

Product Specifications

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Key Application Fields

2-Chlorobenzaldehyde serves as a versatile intermediate across four major industry sectors.

1. Pharmaceutical Industry — Antibiotic Intermediates

The pharmaceutical sector is a primary driver of 2-chlorobenzaldehyde demand. The compound is a key intermediate in the synthesis of penicillinase-resistant antibiotics such as flucloxacillin and cloxacillin sodium. In medicine, 2-chlorobenzaldehyde is mainly used for the synthesis of cloxacillin. This sector demands high purity and consistent quality, making it a premium market segment for suppliers with robust quality systems.

2. Agrochemical Industry — Pesticide Intermediates

2-Chlorobenzaldehyde is a core intermediate for synthesizing a range of crop protection chemicals. It serves as an intermediate for agricultural pesticides and is used to synthesize intermediates crucial for the development of effective pesticides. It is also used as an intermediate for agricultural chemicals more broadly.

3. Dye Industry — Dye Intermediates

2-Chlorobenzaldehyde is widely used as an intermediate in dye synthesis. It is utilized in the production of acidic dyes, photosensitive dyes, photochromic materials, and red and orange pigments. It also serves as an intermediate for optical brighteners and is used to prepare triphenyl methane and related dyes.

4. Electroplating Industry — Acid Zinc Brightener

One of the most distinctive applications of 2-chlorobenzaldehyde is in the electroplating industry, where it serves as an efficient brightener in acid zinc electroplating baths. At a concentration of 50-150 mg/L, it acts as a primary brightener, providing fast brightening, high gloss, and low dosage requirements.

2-Chlorobenzaldehyde refines coating crystals, making the deposit dense and shining. The compound enhances surface brightness, metal adhesion, and uniformity, making it suitable for both electroplating and electroless plating processes.

Quality Specifications

Typical quality specifications for 2-chlorobenzaldehyde (≥99.0% grade):

Packaging and Storage

Storage Conditions:

• Store in a cool, dry, well-ventilated area away from incompatible substances

• Keep container tightly closed when not in use

• Protect from moisture and light

• Store under inert atmosphere (nitrogen recommended)

• Keep away from heat, sparks, and flame

• Avoid contact with strong oxidizing agents, strong bases, iron, and strong reducing agents

• Shelf life: 12 months under recommended storage conditions

Why Snowhite Chemical

Snowhite Chemical Co., LTD. is a reliable supplier of 2-chlorobenzaldehyde for global buyers.

Our 2-chlorobenzaldehyde offering includes:

• High-purity product meeting ≥99.0% assay specification

• GC testing on every batch, COA provided with each shipment

• Prompt order processing and delivery

• Technical support and application consultation

• 250 kg plastic drums or customized packaging solutions

Whether you need 2-chlorobenzaldehyde for pharmaceutical synthesis, agrochemical production, dye manufacturing, or electroplating applications, Snowhite Chemical provides consistent quality and reliable service.

Contact SNOWHITE CHEMICAL CO.,LTD now to get COA, free samples and the latest quotation.

Email: shirley@snowhitechem.com

Phone: +86-25-56215758.

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