5-Fluorouracil (5-FU) API: High Purity, cGMP Compliant & Global Supply

Reliable 5-Fluorouracil manufacturer supplying pharmaceutical grade 5-FU (CAS 51-21-8) for anticancer drug production. Support custom packaging, bulk orders & global regulatory compliance. Get instant quote now!

Product Overview: 5-Fluorouracil (5-FU)

5-Fluorouracil (CAS No.: 51-21-8), commonly known as 5-FU, is a key nucleoside antimetabolite API widely used in the synthesis of anticancer pharmaceuticals. As a professional 5-Fluorouracil manufacturer in China, we produce high-purity 5-FU through advanced chemical synthesis technology, ensuring consistent quality that meets USP, EP, and BP standards. Our 5-Fluorouracil is mainly applied in the production of drugs for treating colorectal cancer, breast cancer, gastric cancer, and pancreatic cancer, trusted by pharmaceutical companies and research institutions worldwide.

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Technical Specifications

ItemSpecificationTest Method
Chemical Name5-Fluoro-2,4(1H,3H)-pyrimidine dione
CAS Number51-21-8
Synonyms5-FU; NSC 19893; 5-Fluoro-uracil
Molecular FormulaC₄H₃FN₂O₂
Molecular Weight130.08
AppearanceWhite to off-white crystalline powderVisual Inspection
Purity≥99.0%HPLC
Melting Point282-286°C (decomposition)USPAppendix
SolubilitySoluble in DMSO (13.01 mg/ml), slightly soluble in ethanol, soluble in water (30 mg/ml at 20°C)USP Appendix
Loss on Drying≤0.5%105°C, 2hrs
Residue on Ignition≤0.1%USP Appendix
Heavy Metals≤10 ppmAtomic Absorption Spectroscopy
Storage ConditionStore at 2-8°C, protect from light and moisture; retain in carton until use
Shelf Life2 years when stored as recommended

Applications

5-Fluorouracil is a critical API for the synthesis of anticancer drugs. Its main applications include:

  • Production of intravenous injection drugs for treating colorectal cancer, breast cancer, gastric cancer, pancreatic cancer, and esophageal cancer
  • Research and development of novel antimetabolite anticancer drugs
  • Synthesis of pharmaceutical intermediates and reference standards

Request a Quote or Technical Support

For inquiries about 5-Fluorouracil (CAS 51-21-8) pricing, availability, custom orders, or technical documentation, please contact our sales team directly. We will respond within 24 hours.

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