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Shaanxi Kaishi Biotechnology Co., Ltd
Product Description
Colistin Sulfate Powder is a polypeptide antibiotic active pharmaceutical ingredient widely used in veterinary pharmaceutical formulation and animal health product development. Supplied as a controlled-quality API, colistin sulfate provides standardized potency, analytical verification, and technical documentation support for professional pharmaceutical manufacturing applications.
Colistin Sulfate is the sulfate salt form of colistin, a cyclic polypeptide compound belonging to the polymyxin class of antibiotics. It is commonly supplied as a veterinary pharmaceutical active ingredient for animal health formulations.
Commercial colistin sulfate is produced through controlled fermentation processes using selected microbial strains, followed by purification and salt formation. As a complex mixture of related polypeptide components, product quality is evaluated based on potency, composition profile, impurity control, and analytical testing.
For veterinary pharmaceutical procurement, buyers should evaluate potency expression, composition profile, manufacturing process, microbiological quality, documentation package, and suitability for the intended formulation.
| Item | Specification |
|---|---|
| Product Name | Colistin Sulfate Powder |
| Product Category | Veterinary Pharmaceutical API / Polypeptide Antibiotic Ingredient |
| Active Compound | Colistin Sulfate |
| Antibiotic Class | Polymyxin Antibiotic |
| CAS Number | 1264-72-8 |
| Molecular Formula | C52H98N16O13·5H2SO4 (commonly represented for colistin sulfate complex) |
| Molecular Weight | Approximately 1425.69 g/mol |
| Appearance | White to slightly yellow powder |
| Potency | Common pharmaceutical grades are specified by antibiotic activity units according to quality standards |
| Identification | Conforms to colistin sulfate reference standard identification requirements |
| Standard Test Method | Microbiological assay and analytical testing methods |
| Production Method | Microbial fermentation, purification, and sulfate salt formation |
| Particle Size | Fine powder; customized according to formulation requirements |
| Moisture Content | Controlled according to pharmaceutical ingredient specifications |
| Microbial Quality | Controlled according to veterinary pharmaceutical requirements |
| Shelf Life | Typically 24 months under recommended storage conditions |
| Storage | Store in a tightly sealed container in a cool, dry place protected from moisture, heat, and direct light |
| Packaging | Pharmaceutical-grade aluminum foil bags or sealed containers; bulk packaging customized according to requirements |
The most important sourcing factor for colistin sulfate is understanding that it is a polypeptide antibiotic complex rather than a single simple molecular compound. Buyers should focus on potency, component profile, fermentation consistency, impurity control, and analytical documentation when evaluating API quality.
| Evaluation Factor | Why It Matters | Buyer Consideration |
|---|---|---|
| Potency Specification | Defines antibiotic activity level | Review activity assay results and specification requirements |
| Component Profile | Reflects composition of related colistin fractions | Evaluate analytical composition data |
| Fermentation Process | Affects batch consistency and quality | Review production controls and traceability |
| Impurity Control | Supports pharmaceutical quality management | Check analytical reports and quality documentation |
Unlike many small-molecule APIs, colistin sulfate is a mixture of related polypeptide components. Potency testing is therefore an essential quality parameter used to evaluate biological activity and maintain consistent pharmaceutical specifications.
Colistin Sulfate quality control focuses on biological potency, component analysis, fermentation consistency, and pharmaceutical quality management.
COA, TDS, SDS, and technical documentation can be provided for veterinary pharmaceutical ingredient evaluation and procurement.
Colistin Sulfate Powder is supplied in sealed pharmaceutical-grade packaging designed to protect product quality during storage and transportation.
The product should be stored in a cool and dry environment, protected from moisture, heat, and direct light. Proper storage helps maintain API stability and quality.
Colistin Sulfate can support veterinary pharmaceutical projects requiring API sourcing, potency specification review, technical documentation, and customized packaging solutions according to project requirements.
Colistin sulfate is a sulfate salt form of colistin, a polymyxin-class cyclic polypeptide antibiotic ingredient used in veterinary pharmaceutical applications.
Colistin sulfate consists of related polypeptide components, so biological potency testing is an important quality parameter for evaluating activity and batch consistency.
Buyers should evaluate potency specification, component profile, fermentation process, impurity control, analytical methods, and quality documentation.
Colistin sulfate powder should be stored in tightly sealed packaging under cool and dry conditions, protected from moisture, heat, and direct light.
Colistin Sulfate Powder is a specialized veterinary pharmaceutical API requiring potency verification, composition control, and reliable analytical documentation. With controlled fermentation quality and professional supply support, it provides a dependable ingredient solution for animal health formulation projects. Contact us today to request samples, a COA, technical documents, and a wholesale quotation for Colistin Sulfate Powder.
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