Description

Narasin CAS NO 55134-13-9 is a polyether ionophore antibiotic derived from *Streptomyces aureofaciens*. This compound is critically important for its potent anticoccidial and antibacterial activity, primarily targeting gram-positive bacteria. It is an essential additive in animal husbandry, particularly for poultry, to promote growth and control coccidiosis. Industries requiring this high-purity active pharmaceutical ingredient include veterinary pharmaceuticals, animal feed additives, and agricultural research.

Application

• Veterinary Anticoccidial Agent: Primary use as a feed additive for the prevention and control of coccidiosis in poultry, including broiler chickens.
• Growth Promoter: Used in sub-therapeutic doses to improve feed efficiency and promote growth in food-producing animals.
• Active Pharmaceutical Ingredient (API): Serves as the key component in the formulation of premixes and medicated feeds for veterinary use.
• Microbiological Research: Used as a selective agent in research studies involving ion transport and membrane potential in cells.
• Reference Standard: Employed as an analytical standard in quality control laboratories for assay and impurity testing.

Basic Information

Product Name	Narasin
CAS No.	55134-13-9
Molecular Formula	C₄₃H₇₂O₁₁
Molecular Weight	765.0 g/mol
Synonyms	Narasin A; Antibiotic A28086A; Monteban; Cygro; Narasin Sodium Salt; Polyetherin A; 6-Deoxy-5-(4-deoxy-4-{[(2R,5S,7R,9R)-5-ethyl-5,9-dihydroxy-2-{[(2R,5S,7R)-5-ethyl-5-hydroxy-2,7-dimethyl-1,6-dioxaspiro[4.5]dec-2-yl]methyl}-2,8-dimethyl-1,7-dioxaspiro[5.5]undec-8-yl]methyl}-3-O-methyl-β-L-arabinopyranosyloxy)-2-O-methyl-β-D-mannopyranosyl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-β-D-arabino-hexopyranosyl)-3-O-methyl-β-D-ribo-hexopyranoside
EINECS	259-513-3

Quality Control

Our Narasin is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for assay and related substances, to ensure it meets high-purity standards suitable for pharmaceutical applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation. Keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference standard
Identification (HPLC)	Retention time corresponds to reference
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 3.0% Any single impurity ≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.