D Kaifeng Darui Pharmaceutical Veterinary API Manufacturer · China Request a Quote
Kaifeng · Henan · Established 2002

Veterinary APIs, Refined Since 2002

Kaifeng Darui Pharmaceutical develops and manufactures premium veterinary APIs, pharmaceutical intermediates and food additives. Backed by GMP, ISO 9001:2015, REACH and FDA 21 CFR Part 11 compliance, we export to 30+ countries worldwide.
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2002Year Founded
9APIs & Intermediates
30+Countries Exported
12+Patents
China Veterinary Drug GMP ISO 9001:2015 REACH Compliant FDA 21 CFR Part 11 National High-Tech Enterprise
Who We Are

A GMP-certified source for veterinary APIs

Established in 2002 and located in Kaifeng Fine Chemical Park, Kaifeng Darui Pharmaceutical is a high-tech enterprise integrating R&D, production and sales of pharmaceutical raw materials, food additives and veterinary APIs.
Our D-Grade cleanroom workshops, automated closed-loop reaction systems and patented crystallization techniques deliver exceptional purity for coccidiostats, antivirals and fine chemical intermediates.
Read Our Story
Focused Portfolio
Nine veterinary APIs and fine chemical intermediates, all with CAS numbers and full documentation.
Patented Process
Proprietary synthesis and purification systems, with 12 utility patents and 4 pending.
GMP Workshops
Highly automated GMP standard workshops with D-Grade cleanroom and HEPA filtration.
Analytical Capability
Shimadzu HPLC, FT-IR spectrometers, stability chambers and UV-Vis testing.
Green Manufacturing
150t/d wastewater recycling and RCO exhaust treatment for sustainable operations.
Global Registration
Products exported to the USA, EU and 30+ countries across regulated markets.
Product Portfolio

From veterinary APIs to fine chemical intermediates

A compact, fully traceable value chain. Albendazole, Rifaximin, Bronopol and more, each with CAS numbers and GMP documentation.
AlbendazoleCAS 54965-21-8
Antiparasitic drug for human and veterinary use.
Amprolium HydrochlorideCAS 137-88-2
Veterinary anticoccidial drug.
BronopolCAS 52-51-7
Antibacterial preservative for industrial, medical and cosmetic use.
AcyclovirCAS 59277-89-3
Antiviral drug.
EthopabateCAS 59-06-3
Veterinary anticoccidial drug.
FlumequineCAS 42835-25-6
Veterinary antibacterial drug.
RifaximinCAS 80621-81-4
Broad-spectrum antibiotic.
DBDMHCAS 77-48-5
Fine chemical intermediate.
TropinoneCAS 532-24-1
Atropine intermediate.
View Full Product List
Quality & Compliance

A compliance record built over two decades

From Chinese Veterinary Drug GMP to ISO 9001:2015, REACH and FDA alignment, every milestone widens the markets our partners can serve.
  • GMP-controlled manufacture in automated standard workshops
  • DMF, COS and Written Confirmation documentation for regulated filings
  • Modern stainless steel production equipment
  • Advanced chromatographic and spectrophotometric analysis
  • Batch documentation and full traceability
  • Support for customer audits and specification review

    • Registered markets

    1. USA
    2. EU
    3. Southeast Asia
    4. Latin America
    5. China

    Facility & Infrastructure

    • 700㎡ API facility: synthesis + purification
    • D-Grade cleanroom (ISO 8 equivalent)
    • Isolated air purification systems
    • 150t/d wastewater recycling
    • RCO exhaust treatment
    Manufacturing Footprint

    Two decades in Kaifeng Fine Chemical Park

    Production is running at Kaifeng Darui Pharmaceutical inside the Kaifeng Fine Chemical Development Zone, expanding capacity for global partners.
    USAEUSoutheast AsiaLatin America ChinaMiddle EastAfricaOceania

    Looking for a reliable Veterinary API partner?

    Send us your specification, DMF request or audit enquiry. Our international team responds quickly.
    Request a Quote
    © 2026 Kaifeng Darui Pharmaceutical Co., Ltd. All rights reserved. Kaifeng Fine Chemical Development Zone, Henan, China · 0371-23795955
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