Description

Erythromycin Phosphate is a water-soluble phosphate salt derivative of the macrolide antibiotic erythromycin, offering enhanced stability and bioavailability for pharmaceutical formulations. This compound is critical for developing effective antibiotic treatments, ensuring reliable therapeutic performance and patient safety. It is primarily utilized by manufacturers in the pharmaceutical industry for producing injectable and oral dosage forms to combat a wide range of bacterial infections.

Application

• Pharmaceutical Active Ingredient (API): Core component in the manufacture of antibiotic injections and oral suspensions.
• Veterinary Medicine: Used in formulations for treating bacterial infections in livestock and companion animals.
• Research & Development: Serves as a reference standard and key intermediate in microbiological and pharmacological studies.
• Topical Formulations: Incorporated into creams, ointments, and gels for localized antibacterial treatment.
• Respiratory Tract Infection Treatments: Formulated into medications targeting pneumonia, bronchitis, and other respiratory illnesses.
• GMP Manufacturing: Supplied as a high-purity raw material for production under Good Manufacturing Practice guidelines.

Basic Information

Product Name	Erythromycin Phosphate
CAS No.	4501-00-2
Molecular Formula	C37H67NO13 • H3PO4
Molecular Weight	Approx. 856.0 g/mol
Synonyms	Erythromycin phosphate salt; Erythromycin dihydrogen phosphate; Erythromycin 2'-phosphate; Ilotycin phosphate; E-Mycin phosphate; Erythrocin phosphate; Abomacetin phosphate; ERY-P; Erysorb
EINECS	224-800-8

Quality Control

Our Erythromycin Phosphate is manufactured and tested to meet stringent pharmacopeial standards, including USP and EP monographs. Each batch undergoes comprehensive analytical testing for identity, potency, and purity. A Certificate of Analysis (COA) detailing all test results is provided to ensure full traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). The product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White or almost white crystalline powder
Identification (IR)	Conforms to standard
Identification (HPLC)	Retention time corresponds to reference
Assay (HPLC)	95.0% - 102.0% (on anhydrous basis)
Water (KF)	≤ 5.0%
pH (5% solution)	6.5 - 7.5
Related Substances (HPLC)	Total impurities ≤ 5.0%
Residual Solvents (GC)	Meets ICH Q3C guidelines
Bacterial Endotoxins	< 0.5 EU/mg
Microbial Enumeration	Meets USP <61> requirements

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