
CAS No.: 7689-03-4
Molecular formula: C₂₀H₁₆N₂O₄
Molecular weight: 348.35
EINECS No.: 444-280-6
Stability: Can be stored in DMSO at -20 °C for up to 3 months.
Description
Camptothecin (CAS: 7689-03-4) is a plant-derived alkaloid widely used in pharmaceutical research for its anticancer properties.
Features
High Purity
Camptothecin is a high-purity crystalline powder (≥98%), ensuring the reliability of experimental and research results.
Chemical Stability
Stable when kept dry, cool, and away from light.
Low Water Solubility
Slightly soluble in water, soluble in organic solvents such as DMSO, methanol, and ethanol.
Quality Standard
|
Items |
Standard |
|
Appearance |
Yellowish crystals powder |
|
Assay (HPLC) |
98%min |
|
Sulphated ash |
0.5%max |
|
Loss on drying |
0.5%max |
|
Melting Point |
259-263°C |
|
Heavy Metals |
10ppm max |
|
10-hydroxycamptothecin |
0.2%max |
|
Total impurity (HPLC) |
2.0%max |
|
Other individual impurity |
0.15%max |
Why Choose Us
Quality Management and Certifications
ISO9001-certified system with strict QC ensures purity, performance, and compliance with international safety standards.
Reliable Supply Chain and Logistics
Robust sourcing and professional logistics guarantee stable supply, fast delivery, and bulk order support.


Marketing
Our products are sold well in more than 60 countries and regions including North America, Western Europe, Southeast Asia, Central and South America, etc. We have established long-term and stable cooperative relations with pharmaceutical companies in Europe, the United States, Greece, Germany, Iran, Russia, South Korea, India and other countries.


FAQ
Q: What is Camptothecin?
A: Camptothecin is a plant-derived alkaloid used as a chemotherapeutic agent and biochemical research compound. It appears as a yellow crystalline powder.
Q: What is the CAS number and molecular formula?
A: CAS number is 7689-03-4, molecular formula C20H16N2O4, molecular weight 348.36 g/mol. This information is essential for regulatory compliance and sourcing.
Q: What are the key purity specifications buyers should check?
A: Purity is typically ≥ 98% for research or pharmaceutical use. High purity ensures reliable biological activity and reproducibility.
Q: How is Camptothecin typically supplied?
A: Supplied as powder or crystalline form, usually in airtight, light-resistant containers to prevent degradation. Proper packaging is critical due to its sensitivity to light and moisture.
Q: What storage and handling precautions are necessary?
A: Store in a cool, dry, dark place, away from strong oxidizers. Handle with gloves and protective equipment, as it is toxic and potentially hazardous.
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