Introduction

2,4-Dichlorobenzaldehyde (CAS 874-42-0) is one of the most widely used chlorinated aromatic aldehydes in the chemical industry. It serves as a critical intermediate in the production of fungicides, reactive dyes, and pharmaceutical compounds. With chlorine atoms substituted at the 2 and 4 positions of the benzaldehyde ring, this isomer offers distinct reactivity that makes it particularly valuable in agrochemical synthesis.

This article provides a market-oriented overview of 2,4-dichlorobenzaldehyde — covering its key applications, quality specifications, and sourcing considerations for buyers in 2026.

Product Specifications

Key Application Fields

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1. Agrochemical Industry — Fungicides

The primary application of 2,4-dichlorobenzaldehyde is in the synthesis of diniconazole, a broad-spectrum triazole fungicide widely applied to cereal crops, fruits, and vegetables. It also serves as a building block for other fungicides and herbicides.

2. Dye Industry — Reactive Dyes

Through reaction with sodium bisulfite, 2,4-dichlorobenzaldehyde produces benzaldehyde-2,4-disulfonic acid — a key intermediate for reactive dyes including Reactive Deep Blue K-FGR and Acid Lake Blue A.

3. Pharmaceutical Industry — API Intermediates

This compound is used in the synthesis of certain antifungal and anti-inflammatory pharmaceutical agents, particularly as an intermediate in API manufacturing.

Packaging and Storage

Custom packaging available upon request

Storage Conditions:

• Store in a cool, dry, well-ventilated area

• Keep container tightly closed

• Storage temperature below 30°C

• Avoid contact with oxidizing agents

• Shelf life: 12 months under recommended storage conditions

Market and Supply Overview

China is a major global producer of 2,4-dichlorobenzaldehyde, with production capacity concentrated in chemical manufacturing hubs such as Jiangsu, Zhejiang, and Shandong provinces. The industry has benefited from vertically integrated supply chains for raw materials and established production infrastructure.

The global 2,4-dichlorobenzaldehyde market was valued at approximately USD 47.3 million in 2024 and is projected to reach USD 64.1 million by 2031, with a CAGR of 4.5% during the forecast period. Unlike the 2,6- isomer, which historically relied on imports, 2,4-dichlorobenzaldehyde has a well-established domestic production base with consistent quality and stable supply.

Comparison with 2,6-Dichlorobenzaldehyde

For buyers evaluating dichlorobenzaldehyde isomers, the selection depends on the target application:

The 2,4-isomer is typically the preferred choice for fungicide and reactive dye applications, where the 2,4-substitution pattern enables specific binding affinity in triazole fungicides and directs the dye synthesis pathway toward reactive dye structures.

For buyers seeking an intermediate for insecticide or mordant dye applications, the 2,6-isomer may be more suitable. Refer to our companion article: 2,6-Dichlorobenzaldehyde (CAS 83-38-5) Supply Chain and Sourcing Guide 2026.

Why Snowhite Chemical

Snowhite Chemical Co., LTD. is a reliable supplier of 2,4-dichlorobenzaldehyde for global buyers.

Our offer includes:

• High-purity product meeting ≥ 98.0% assay specification

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

• Prompt order processing and delivery

• Application consultation and technical support

• 25kg drums or customized packaging solutions

Whether you need 2,4-dichlorobenzaldehyde for agrochemical production or pharmaceutical intermediates, Snowhite Chemical provides consistent quality and reliable service.

Contact Us

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

Email: shirley@snowhitechem.com

Phone: +86-25-56215758

WhatsApp：+86-13776524331