Kaifeng Darui Pharmaceutical Co., Ltd. | Interactive Overview

Driving Innovation in Pharmaceutical Excellence

As a leading GMP-certified manufacturer of high-end pharmaceutical raw materials and veterinary APIs, we are your trusted partner for quality, sustainability, and innovation in a global market.

Explore Our Core Values

Our Foundational Pillars

We build our success on three core principles. Click to explore how each pillar defines our commitment to excellence.

GMP Certified Excellence

Quality is the cornerstone of everything we do. As a GMP-certified company, we adhere to the most stringent international standards. Our state-of-the-art facilities include Grade D cleanroom-certified API workshops, ensuring a controlled and contaminant-free environment for every stage of production.

This unwavering commitment guarantees that every batch of our pharmaceutical raw materials and veterinary APIs meets the highest purity, efficacy, and safety standards.

Our Quality Control Process

1
Raw Material Sourcing & Testing
2
Controlled API Production
3
In-Process & Final QC Checks
✓
Batch Release & Certification

Why Partner With Kaifeng Darui?

We provide more than just ingredients; we provide a foundation for your success. Here’s the value we bring to every partnership.

Uncompromising Quality

Adherence to the highest GMP standards for guaranteed purity and efficacy.

Sustainable Practices

Environmentally responsible manufacturing for a greener future.

Reliable Supply Chain

Consistent and timely production of high-end APIs and raw materials.

Global Reach

Serving and supporting pharmaceutical manufacturers worldwide.

Innovative Solutions

Continuously developing advanced pharmaceutical ingredients.

Cost-Quality Advantage

Access to premium animal health and pharmaceutical solutions.

Let's Build a Healthier Future Together

For inquiries about our capabilities or to discuss potential collaborations, please reach out. We are ready to be your trusted partner.

Contact Us

© 2025 Kaifeng Darui Pharmaceutical Co., Ltd. All Rights Reserved.

Rifamycin O (CAS No. 14487-05-9)

Rifamycin O (CAS No. 14487-05-9)

Reading

1. What Is Rifamycin O?

Rifamycin O is a semi-synthetic antibiotic belonging to the rifamycin group, with a molecular formula of C₄₈H₆₈N₄O₁₁ and CAS No. 14487-05-9. Renowned for its potent antimicrobial activity against Gram-positive bacteria, mycobacteria, and certain Gram-negative species, Rifamycin O serves as a critical intermediate in the manufacture of various clinically important rifamycin derivatives.

2. Key Specifications & Quality Assurance

  • Purity: ≥ 98.0% (HPLC)

  • Appearance: Orange-red crystalline powder

  • Moisture: ≤ 1.0%

  • Melting Point: 190–195 °C

  • Heavy Metals: ≤ 10 ppm

  • Residual Solvents: Compliant with USP/EP standards

  • Microbial Limits: Total plate count ≤ 100 CFU/g; Yeasts & molds ≤ 10 CFU/g

Quality Certifications: ISO 9001, GMP-compliant manufacturing, and strict adherence to ICH Q7 guidelines.

3. Applications & Benefits

  • Pharmaceutical Intermediates: Ideal precursor for rifamycin SV, rifampicin, and innovative antibiotic derivatives.

  • Research & Development: Widely used in drug discovery, microbiology assays, and formulation studies.

  • High Batch Consistency: Ensures reproducible outcomes for scale-up and industrial processes.

4. Customer-Focused Services

4.1 On-Behalf Processing

  • Custom Reaction Workflows: We perform complex transformations (e.g., acylation, purification) on your behalf under strict confidentiality.

  • Analytical Reporting: Comprehensive HPLC, NMR, and MS data provided for each batch.

4.2 Customized Production

  • Scale Flexibility: From gram-scale R&D to multi-ton commercial supply.

  • Tailored Specifications: Adjust purity, particle size, or solvent residuals to meet your dossier requirements.

  • Dedicated Project Teams: Experienced chemists oversee every stage, ensuring timely delivery.

4.3 Neutral Large-Volume Packaging

  • Unbranded Options: Ideal for OEM/white-label manufacturers.

  • Packaging Sizes: 25 kg, 100 kg drums, or customer-specified volumes.

  • Secure Logistics: Moisture-barrier liners, tamper-evident seals, and worldwide freight coordination.

5. Why Choose Kaifeng Darui Pharmaceutical Co., Ltd.?

  • 40+ Years of Expertise: Proven track record in antibiotic intermediates.

  • State-of-the-Art Facilities: Fully equipped chemical synthesis and QC labs.

  • Regulatory Support: Dossiers available for DMF, CEP, and custom filings.

  • Global Reach: Reliable exports to North America, Europe, and Asia-Pacific.

6. Technical & Regulatory Documentation

  • Certificate of Analysis (CoA)

  • Material Safety Data Sheet (MSDS)

  • GMP Compliance Statement

  • Regulatory Dossiers (DMF/CEP)

7. How to Enquire & Order

  1. Request a Quote: Fill out our online RFQ form with your requirements.

  2. Feasibility Review: Our technical team assesses customizations and lead times.

  3. Sample Provision: Rapid shipment of R&D-scale samples upon request.

  4. Contract Manufacturing: Formalize your order with a customized supply agreement.

Contact Us Today:
📧 Email: sales@daruipharm.com
☎️ Tel: +86-13837178289
🌐 Web: https://daruipharm.com/contact

Optimize Your Supply Chain with Premium Rifamycin O
Partner with Kaifeng Darui Pharmaceutical Co., Ltd. for unparalleled quality, flexible manufacturing, and comprehensive service packages tailored to your pharmaceutical development needs.

Rifamycin O (CAS No. 14487-05-9)

1. What Is Rifamycin O? Rifamycin O is a semi-synthetic antibiotic belonging to the rifamycin group, with a molecular formula of C₄₈H₆₈N₄O₁...

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