Top 10 Companies in the (E)-2-Butenoyl chloride (CAS 625-35-4) Market (2026): Market Leaders Powering Global Chemical Innovation

MARKET INSIGHTS

Global (E)-2-Butenoyl chloride (CAS 625-35-4) market size was valued at USD 28.4 million in 2025. The market is projected to grow from USD 29.7 million in 2026 to USD 46.2 million by 2034, exhibiting a CAGR of 5.6% during the forecast period (2025–2034).

(E)-2-Butenoyl chloride, also known as crotonyl chloride or trans‑2‑butenoyl chloride, is an acyl halide derived from crotonic acid. It is a reactive chemical intermediate characterized by its trans‑configured carbon‑carbon double bond and highly electrophilic carbonyl group, making it a versatile building block in organic synthesis. The compound finds primary application in the production of pharmaceuticals, agrochemicals, and specialty chemical intermediates, where it serves as an acylating agent in the synthesis of esters, amides, and other functional derivatives.

The market is driven by growing demand from the pharmaceutical and agrochemical sectors, where (E)-2-Butenoyl chloride is increasingly utilized in the synthesis of active pharmaceutical ingredients and crop protection chemicals. Furthermore, expanding research activities in fine chemicals and the steady rise in specialty chemical manufacturing across Asia‑Pacific—particularly in China and India—are contributing to market momentum. However, the compound’s highly reactive and corrosive nature necessitates stringent handling and storage protocols, which can add operational complexity for end users.

(E)-2-Butenoyl chloride (CAS 625-35-4) Market – View in Detailed Research Report

---

🔟 1. TCI Chemicals

Headquarters: Tokyo, Japan
Key Offering: Pharmaceutical‑grade acyl chlorides and specialty reagents

TCI Chemicals is a leading fine chemical supplier known for its high‑purity reagents used in pharmaceutical and fine chemical synthesis. Their (E)-2‑Butenoyl chloride is produced under stringent GMP‑aligned conditions, ensuring consistent quality for API development.

Sustainability & Growth Initiatives:

• Implementation of ISO 14001 environmental management systems
• Investment in energy‑efficient distillation units to reduce CO₂ footprint
• Development of low‑toxicity packaging to minimize hazardous waste

---

9️⃣ 2. Sigma‑Aldrich (Merck KGaA)

Headquarters: Darmstadt, Germany / USA
Key Offering: Broad portfolio of acyl chlorides and laboratory reagents

Sigma‑Aldrich is a global leader in chemical supplies, providing researchers with reliable, high‑purity (E)-2‑Butenoyl chloride for pharmaceutical and agrochemical research.

Sustainability & Growth Initiatives:

• Participation in the REACH compliance program to ensure regulatory safety
• Use of recyclable glass and aluminum containers for shipping
• Continuous improvement of solvent‑free synthesis routes

---

8️⃣ 3. Thermo Fisher Scientific (Alfa Aesar)

Headquarters: Waltham, Massachusetts, USA
Key Offering: High‑purity specialty reagents for pharma R&D

Thermo Fisher’s Alfa Aesar division supplies (E)-2‑Butenoyl chloride to academic and industrial laboratories, emphasizing stringent quality control and traceability.

Sustainability & Growth Initiatives:

• Adoption of green chemistry principles in production
• Reduced water usage in distillation processes
• Partnerships with universities for sustainable synthesis research

---

7️⃣ 4. ABCR GmbH

Headquarters: Mönchengladbach, Germany
Key Offering: Custom synthesis of acyl chlorides for pharmaceutical intermediates

ABCR specializes in custom, high‑purity acyl chloride synthesis, catering to pharmaceutical companies requiring tailored reagents for complex drug molecules.

Sustainability & Growth Initiatives:

• Implementation of a closed‑loop solvent recovery system
• Use of renewable energy sources in production facilities
• Continuous process optimization to reduce waste

---

6️⃣ 5. Acros Organics (Thermo Fisher)

Headquarters: Leusden, Netherlands / USA
Key Offering: Specialty acyl chlorides for fine chemical synthesis

Acros Organics delivers high‑purity (E)-2‑Butenoyl chloride with detailed safety data sheets, supporting researchers in pharmaceutical and agrochemical development.

Sustainability & Growth Initiatives:

• Reduction of hazardous by‑products through optimized reaction pathways
• Use of biodegradable packaging materials
• Collaboration with NGOs to promote responsible chemical handling

---

5️⃣ 6. Fluorochem Ltd

Headquarters: London, United Kingdom
Key Offering: Specialty fluorinated acyl chlorides and intermediates

Fluorochem’s portfolio includes (E)-2‑Butenoyl chloride for advanced pharmaceutical synthesis, with a focus on high‑purity and consistent batch quality.

Sustainability & Growth Initiatives:

• Investment in renewable energy for production lines
• Development of low‑toxicity solvent systems
• Participation in the European Green Deal initiatives

---

4️⃣ 7. Apollo Scientific Ltd

Headquarters: London, United Kingdom
Key Offering: Custom chemical synthesis for pharmaceutical and agrochemical sectors

Apollo Scientific offers tailored synthesis of (E)-2‑Butenoyl chloride, ensuring compliance with international safety and quality standards.

Sustainability & Growth Initiatives:

• Adoption of green chemistry protocols in custom synthesis
• Use of recyclable glassware and packaging
• Engagement with academic partners for sustainable process development

---

3️⃣ 8. Dongying Yingxin Chemical Co., Ltd.

Headquarters: Dongying, China
Key Offering: Bulk production of acyl chlorides for pharmaceutical intermediates

Dongying Yingxin provides cost‑effective, high‑purity (E)-2‑Butenoyl chloride, supporting large‑scale pharmaceutical and agrochemical manufacturing in Asia‑Pacific.

Sustainability & Growth Initiatives:

• Implementation of hazardous waste reduction protocols
• Adoption of ISO 9001 quality management systems
• Investment in energy‑efficient distillation units

---

2️⃣ 9. Hairui Chemical (Haihang Industry Co., Ltd.)

Headquarters: Shandong, China
Key Offering: Specialty acyl chlorides for pharmaceutical and agrochemical applications

Hairui Chemical offers (E)-2‑Butenoyl chloride with stringent purity controls, catering to both research and industrial markets.

Sustainability & Growth Initiatives:

• Use of renewable energy sources in manufacturing
• Development of low‑toxic packaging solutions
• Collaboration with local universities for process optimization

---

1️⃣ 10. Aladdin Biochemical Technology Co., Ltd.

Headquarters: Shanghai, China
Key Offering: High‑purity specialty reagents for pharmaceutical R&D

Aladdin Biochemical provides (E)-2‑Butenoyl chloride to research laboratories worldwide, ensuring rigorous quality and safety compliance.

Sustainability & Growth Initiatives:

• Implementation of green chemistry in synthesis routes
• Use of recyclable packaging materials
• Participation in international safety and environmental programs

---

Download FREE Sample Report: (E)-2-Butenoyl chloride (CAS 625-35-4) Market – View in Detailed Research Report

Get Full Report Here: (E)-2-Butenoyl chloride (CAS 625-35-4) Market – View in Detailed Research Report

---

🌍 Outlook: The Future of (E)-2-Butenoyl chloride Market

The (E)-2‑Butenoyl chloride market is poised for steady growth driven by expanding pharmaceutical R&D, agrochemical innovation, and emerging specialty polymer applications. Key trends include:

• Increased demand for high‑purity reagents in generic drug manufacturing.
• Adoption of green chemistry principles to reduce hazardous waste.
• Growth of contract manufacturing organizations (CMOs) providing custom synthesis services.
• Emerging applications in specialty polymers and functional coatings.

With a projected CAGR of 5.6% through 2034, the market presents attractive opportunities for manufacturers focusing on quality, safety, and sustainability.

---

📈 Future Trends & Innovation Focus

Emerging trends in the (E)-2‑Butenoyl chloride market include:

• Advanced synthesis routes for complex drug molecules, leveraging the acyl chloride’s reactivity.
• Agrochemical innovations targeting crop protection and sustainable agriculture.
• Development of bio‑based specialty polymers incorporating the crotonyl motif for enhanced mechanical and thermal properties.
• Digitalization of supply chains and real‑time monitoring of reagent quality.

These trends underscore the importance of continued investment in process optimization, safety infrastructure, and regulatory compliance to maintain market leadership.