3,5-Dichlorobenzoyl Chloride (3,5-DCBC): Key Intermediate for Agrochemicals & Pharma

CAS No. 2905-62-6

3,5-Dichlorobenzoyl Chloride (3,5-DCBC) is a vital chemical building block. It is essential for manufacturing high-performance herbicides, pharmaceuticals, and specialty chemicals.

Royalchem is a trusted, global supplier of 3,5-DCBC. We provide this critical material to leading agricultural and pharmaceutical companies worldwide. Our commitment to quality ensures our product performs reliably, whether for large-scale production or innovative R&D projects.

Product at a Glance

• Product Name: 3,5-Dichlorobenzoyl Chloride (3,5-DCBC)

• CAS Number: 2905-62-6

• Appearance: Colorless to yellow liquid or low-melting solid

• Melting Point: 24-28°C

Why 3,5-DCBC is Essential

3,5-DCBC is a high-value intermediate. Its unique chemical structure features a reactive acyl chloride group, making it the perfect starting point for complex chemical synthesis in several major industries.

Key Applications

1. Agrochemicals: The Propyzamide Connection

The most important use of 3,5-DCBC is the production of Propyzamide (Pronamide). This herbicide is critical to modern farming, especially for controlling weeds resistant to other chemicals.

• Key Market: Propyzamide is essential for protecting crops like oilseed rape, lettuce, and vegetables.

• Strategic Importance: As herbicide resistance grows, the demand for Propyzamide increases. This makes 3,5-DCBC a strategically vital intermediate for global food production.

2. Pharmaceutical Industry: A Versatile Building Block

In drug manufacturing, 3,5-DCBC is used to build complex active ingredients. Adding the 3,5-dichlorobenzoyl part to a molecule can:

• Help drugs last longer in the body.

• Improve how well drugs are absorbed.

• Enhance the drug's ability to hit its target.

Active Applications Include:

• Pain Management: Used to create new types of analgesics and headache medications.

• Advanced Drugs: It is a key intermediate for FDA-approved medications, including treatments for dry eye disease.

• CNS & Metabolic Drugs: Used in compounds that target central nervous system disorders and metabolic pathways.

3. Specialty Chemicals and Materials

3,5-DCBC is also used to create advanced materials, such as:

• Durable, weather-resistant dyes and pigments.

• Specialty chemicals for photography and imaging.

• Polymer additives and liquid crystal intermediates.

Industry-Leading Quality Specifications

Royalchem delivers 3,5-DCBC that meets the strictest purity standards for pharmaceutical and agrochemical use. 

Primary Specification:

3,5-DCBC Content (GC): 95.0%

Critical Impurity Control (Maximum Limits):

Positional Isomers (Total): 0.50%

• 2,5-DCBC: 0.20%

• 2,4-DCBC: 0.10%

• 3,4-DCBC: 0.20%

Related Chlorinated Compounds (Total): 1.50%

• 3-Chlorobenzoyl chloride (3-CBC): 1.00%

Process-Related Impurities:

• 3,5-Dichlorobenzoic acid: 1.00%

• 3,5-Dichlorobenzoic anhydride: 1.00%

• Other specified impurities: 0.40%

A complete Certificate of Analysis (COA) is provided with every shipment.

Rigorous Quality Assurance

Every batch is tested using:

Gas Chromatography (GC) for purity and impurity profiling.

NMR Spectroscopy for structural confirmation.

Karl Fischer titration for moisture content.

Safe Handling & Global Logistics

We manage 3,5-DCBC with expert care.

Classification: UN 3261, Hazard Class 8 (Corrosive).

Packaging: Secure, export-ready, UN-certified drums and IBCs.

Why Partner with Royalchem?

• Proven Reliability: With over 10 years of experience, we are a trusted partner in the global chemical supply chain. Our ISO 9001:2015 certified system ensures quality.

• Technical Expertise: Our team understands your challenges. We can provide technical guidance on applications and even develop custom specifications.

• Sustainability: We are committed to responsible chemical management.

Get Your Quote Today

Royalchem delivers the quality and consistency your processes demand.

Available Packaging:

• 200 kg Drums

• 1000 kg IBC Tanks

• Bulk Isotanks

Our technical sales team is ready to help you.

Contact us today to:

• Request a detailed COA

• Discuss your specific technical requirements.

• Receive a competitive quotation.

Visit www.royal-chem.com or contact our sales team directly.