Paclitaxel Bulk API: High-Purity Anticancer Ingredient for Pharmaceutical Formulations
1. What Is Paclitaxel? (Overview & Origin)
Paclitaxel—commonly known by the brand name Taxol®—is a naturally derived anticancer compound originally isolated from the bark of Taxus brevifolia (Pacific yew). Today, high-quality pharmaceutical manufacturers rely on semi-synthetic sources and advanced extraction technology to obtain Paclitaxel at consistent purity levels suitable for oncology formulations.
At AIHerba® (Shaanxi Zhonghong Investment Technology Co., Ltd.), we supply GMP-certified Paclitaxel API designed for injectable solutions, liposomal formulations, microspheres, solvent-free delivery systems, and advanced oncology R&D. With over 28 years of extraction and purification experience, our factory specializes in bulk natural actives for global pharmaceutical companies, research institutions, and oncology product developers.
2. Why Paclitaxel Matters (Mechanism & Health Benefits)
2.1 Mechanism of Action
Paclitaxel stabilizes microtubules and prevents cell division, leading to apoptosis in rapidly proliferating cancer cells. Its broad-spectrum antitumor activity is supported by decades of clinical data.
2.2 Primary Therapeutic Benefits
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Breast Cancer Treatment – First-line therapy for metastatic breast cancer and adjuvant regimens.
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Ovarian Cancer – Standard of care in combination with platinum-based drugs.
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Non–Small Cell Lung Cancer (NSCLC) – Widely used as part of multi-drug chemotherapy.
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Kaposi’s Sarcoma – Effective at lower doses in immunocompromised patients.
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Broader Oncology Applications – Under active investigation for bladder, gastric, and esophageal cancers.
2.3 Supporting Evidence
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NIH & PubMed research highlight Paclitaxel’s microtubule-stabilizing action and clinical success in multiple cancers (PMID: 8780475; 7523089).
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FDA-approved for various oncology indications (FDA Paclitaxel Label).
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Long-term safety and efficacy documented in global oncology guidelines.
3. Applications Across Industries
Although Paclitaxel is primarily an oncology API, downstream sectors also use it for R&D:
3.1 Pharmaceutical & Medical
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Injectable chemotherapy formulations
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Liposomal Paclitaxel
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Nanoparticle drug delivery (albumin-bound, polymeric nanoparticles)
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Lyophilized powder for reconstitution
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Sustained-release microspheres
3.2 Research & Biotech
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Cell line studies
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Tumor model development
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Drug-resistance testing
3.3 Healthcare Manufacturing
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Oncology pipeline development
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Clinical trial formulations
(Paclitaxel is not used in cosmetics or food. AIHerba provides other GMP certified plant extract for cosmetics—see product list.)
4. Recommended Usage & Formulation Guide
4.1 Dosage Range (for pharmaceutical R&D reference only)
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Conventional IV: 135–175 mg/m²
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Weekly Regimens: 80–100 mg/m²
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Albumin-bound (nab-Paclitaxel): 100–260 mg/m²
Note: Dosage must follow regional regulatory guidelines. Not for consumer use.
4.2 Formulation Compatibility
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Soluble in ethanol, Cremophor® EL, DMSO
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Compatible with liposomes and nanoparticle systems
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Sensitive to oxidation—formulation antioxidants recommended
4.3 Best Formulation Practices
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Use nitrogen-protected environment
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Maintain low moisture & temperature during blending
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Utilize sealed stainless-steel reactors for solvent processing
5. Production Technology & Manufacturing Workflow
5.1 Extraction & Purification
AIHerba® applies a hybrid process integrating:
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Plant extraction (Taxus species needles & twigs)
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Semi-synthesis pathways using 10-DAB from Taxus chinensis
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Chromatographic purification to reach pharmaceutical-grade purity
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Crystallization for final refinement
5.2 Standard Production Flowchart
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Raw plant material selection →
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10-DAB extraction →
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Side-chain synthesis →
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Semi-synthesis of Paclitaxel →
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Multi-step purification (HPLC & column purification) →
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Crystallization →
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Drying →
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Milling & sieving →
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Sterile packaging →
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Final QC & COA issuance
6. COA-Style Specification Sheet (Pharma-Grade)
6.1 General Specifications
| Item | Specification | Method |
|---|---|---|
| Appearance | White to off-white crystalline powder | Visual |
| Assay (Paclitaxel) | ≥ 99.0% | HPLC |
| Identification | Conforms | HPLC/IR |
| Solubility | Soluble in ethanol, DMSO | USP |
| Melting Point | 213–216°C | USP |
6.2 Pesticide Residue Testing
| Pesticide | Limit | Method |
|---|---|---|
| Total organochlorines | ≤ 0.1 ppm | GC-MS |
| Total organophosphates | ≤ 0.1 ppm | GC-MS |
| Carbamates | ≤ 0.05 ppm | LC-MS |
| Pyrethroids | ≤ 0.1 ppm | GC-MS |
6.3 Heavy Metals
| Heavy Metal | Limit | Method |
|---|---|---|
| Lead (Pb) | ≤ 1 ppm | ICP-MS |
| Arsenic (As) | ≤ 1 ppm | ICP-MS |
| Cadmium (Cd) | ≤ 0.5 ppm | ICP-MS |
| Mercury (Hg) | ≤ 0.1 ppm | ICP-MS |
| Total Heavy Metals | ≤ 10 ppm | USP<231> |
6.4 Microbiological Tests
| Parameter | Limit | Method |
|---|---|---|
| Total Plate Count | ≤ 1,000 CFU/g | USP |
| Yeast & Mold | ≤ 100 CFU/g | USP |
| E. coli | Negative | USP |
| Salmonella | Negative | USP |
| Staphylococcus aureus | Negative | USP |
| Pseudomonas aeruginosa | Negative | USP |
7. Packaging, Storage & Shelf Life
7.1 Packaging
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1 g / 5 g / 10 g sterile glass vial
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100 g / 500 g / 1 kg aluminum foil bag (double layer)
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Custom packaging available for customized herbal extract and oncology APIs
7.2 Storage
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Keep sealed
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Protect from light
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Store at 2–8°C
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Avoid humidity
7.3 Shelf Life
36 months under recommended storage.
8. MOQ, Lead Time, Shipping & Sample Policy
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MOQ: 10 g (research grade) / 100 g (commercial)
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Lead Time: 3–7 days for inventory; 2–4 weeks for production lots
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Shipping: FedEx / DHL / air freight / temperature-controlled cargo
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Free Sample: Yes, ≤ 50 mg (free sample herbal extract / API for R&D)
9. Why Choose AIHerba® as Your Paclitaxel Supplier?
9.1 Experience
28+ years in pharmaceutical extraction, oncology APIs, and GMP-compliant production.
9.2 Authority
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GMP-certified
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ISO9001 / ISO22000
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Third-party testing (SGS, Eurofins)
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Full documentation: COA, MSDS, TDS, stability data
9.3 Trust
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Transparent supply chain
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Traceable raw materials
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In-house R&D team
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Long-term partnerships with global pharmaceutical manufacturers
9.4 Factory Capability
Our manufacturer specializes in bulk oncology actives with scalable output and validated purification technology. Competitive price, full QC system, and customizable packaging.
10. Customer Use Cases
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Oncology formulation developers using Paclitaxel in liposomal R&D
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Pharmaceutical companies preparing investigational drug batches
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Universities conducting cancer biology research
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CROs/CMOs requiring small-scale API supply
11. FAQs (Professional Buyer Version)
1) Do you provide GMP documentation?
Yes. Full GMP set: COA, MSDS, process flow, stability data, impurity profile.
2) Can I buy small R&D quantities?
Yes—MOQ starts from 10 g.
3) Do you offer OEM/ODM formulation support?
Yes. As a dietary supplement raw material manufacturer and oncology extract specialist, we provide custom formulation guidance.
4) Can Paclitaxel be supplied in bulk for large production?
Yes. We support kilograms-level shipments.
5) Is Paclitaxel suitable for food/cosmetics?
No. It is strictly a pharmaceutical API.
12. References (PubMed, NIH, FDA)
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Rowinsky EK, Donehower RC. Paclitaxel pharmacology. J Natl Cancer Inst. PMID: 7523089
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Schiff PB et al. Microtubule stabilization mechanism. Nature. PMID: 8780475
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FDA Paclitaxel Injection Drug Label
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NIH MedlinePlus Drug Information: Paclitaxel
13. Contact & Verification
AIHerba® | Shaanxi Zhonghong Investment Technology Co., Ltd.
📧 sales@aiherba.com | info@aiherba.com | liaodaohai@gmail.com
🌐 www.aiherba.com
GMP-Certified Plant Extract & Oncology API manufacturer, supplier, and factory.





