Description

Doxycycline Polymethaphosphate Sodium Complex is a chemically modified, water-soluble derivative of the broad-spectrum tetracycline antibiotic, doxycycline. This complex is engineered to enhance stability and bioavailability, making it a critical active pharmaceutical ingredient (API) for advanced veterinary and pharmaceutical formulations. It is primarily utilized by manufacturers in the animal health and pharmaceutical industries for producing injectable and oral solutions requiring improved solubility and controlled release profiles.

Application

• Veterinary Injectable Solutions: Primary use in long-acting antibiotic formulations for livestock (poultry, swine, cattle) to treat respiratory and systemic bacterial infections.
• Aquaculture Treatments: Used in medicated feeds or water-soluble treatments for controlling bacterial diseases in fish and shrimp farming.
• Pharmaceutical Intermediates: Serves as a key intermediate for synthesizing advanced doxycycline salts and complexes with tailored release properties.
• Feed Additive Premixes: Incorporated into premixes for prophylactic and therapeutic use in animal nutrition to promote growth and health.
• Research & Development: Employed in biochemical and pharmacological research for studying tetracycline delivery mechanisms and new antibiotic formulations.

Basic Information

Product Name	Doxycycline Polymethaphosphate Sodium Complex
CAS No.	64858-59-9
Molecular Formula	C22H24N2O8 • xNaPO3
Molecular Weight	Variable (Complex)
Synonyms	Doxycycline Metaphosphate Sodium Salt; Doxycycline Sodium Metaphosphate; Doxycycline Polymetaphosphate; Doxycycline Soluble Complex; Doxycycline PO4Na Complex; Doxycycline Phosphate Sodium; Long-acting Doxycycline Salt; Doxycycline Injection Grade
EINECS	Contact for details

Quality Control

Our Doxycycline Polymethaphosphate Sodium Complex is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for identity, purity, and potency, suitable for pharmaceutical and veterinary use. Certificates of Analysis (COA) documenting compliance with relevant in-house or customer-specific standards are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed in a dry environment away from direct light exposure to maintain stability and potency.

Specification

Item	Specification
Appearance	Yellow to light yellow powder
Identification (IR)	Conforms to standard
Assay (Doxycycline Base)	≥ 85.0%
pH (1% Solution)	6.0 - 8.0
Water Content	≤ 5.0%
Residue on Ignition	Contact for details
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Contact for details
Bacterial Endotoxins	< 0.5 EU/mg (if applicable)
Microbial Limit	Conforms to standard

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