Description

Erythromycin A 11,12-Carbonate L-Aspartate is a chemically modified derivative of the macrolide antibiotic erythromycin, designed to enhance stability and alter pharmacokinetic properties. This compound is critical for pharmaceutical R&D, particularly in the development of novel antibiotic formulations and prodrug strategies to improve bioavailability and patient compliance. It serves as a key intermediate for researchers and manufacturers in the pharmaceutical and fine chemical sectors focused on advanced anti-infective therapies.

Application

• Pharmaceutical Intermediate: Primary use as a key building block in the synthesis of advanced erythromycin derivatives and prodrugs.
• Antibiotic Research & Development: Serves as a critical material for studying structure-activity relationships (SAR) to develop new macrolide antibiotics with improved efficacy.
• Prodrug Synthesis: Utilized in the creation of prodrug formulations aimed at enhancing oral absorption, masking taste, or providing targeted release.
• Reference Standard: Used as a high-purity analytical standard in quality control (QC) and research laboratories for method development and validation.
• Fine Chemical Synthesis: Acts as a specialized intermediate in custom synthesis and contract manufacturing for niche pharmaceutical applications.

Basic Information

Product Name	Erythromycin A 11,12-Carbonate L-Aspartate
CAS No.	55171-82-9
Molecular Formula	C40H68N2O16
Molecular Weight	832.98 g/mol
Synonyms	Erythromycin A cyclic 11,12-carbonate with L-aspartate; Erythromycin 11,12-carbonate aspartate; L-Aspartic acid, compd. with erythromycin A 11,12-cyclic carbonate (1:1); Erythromycin A cyclic carbonate L-aspartate salt
EINECS	Contact for details

Quality Control

Our Erythromycin A 11,12-Carbonate L-Aspartate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for pharmaceutical research. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and batch-to-batch consistency.

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 must be kept in a dry environment to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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