Description

Diacetylspiramycin Ii is a semi-synthetic derivative of the macrolide antibiotic spiramycin, characterized by its enhanced stability and bioavailability. This compound is a critical intermediate in the synthesis of advanced pharmaceutical actives, offering significant value in the development of potent antimicrobial formulations. It is primarily required by pharmaceutical manufacturers and research institutions engaged in the production and R&D of antibiotics targeting a broad spectrum of Gram-positive bacteria.

Application

• Pharmaceutical Intermediate: Key starting material or intermediate in the synthesis of final antibiotic drug substances.
• Antimicrobial Research: Used in biochemical and microbiological research to study macrolide antibiotic mechanisms and resistance.
• Veterinary Medicine: Potential application in the development of veterinary antibiotic treatments.
• Reference Standard: Serves as a high-purity chemical reference standard for quality control and analytical testing in laboratories.

Basic Information

Product Name	Diacetylspiramycin Ii
CAS No.	99664-84-3
Molecular Formula	C48H82N2O17
Molecular Weight	959.2 g/mol
Synonyms	Diacetylspiramycin II; Spiramycin II diacetate; Foromacidin D diacetate; 4''-O-Acetylspiramycin II; 3-O-Acetyl-4''-O-acetylspiramycin II; Antibiotic A 231 diacetate; NSC 339243
EINECS	Contact for details

Quality Control

Our Diacetylspiramycin Ii is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for pharmaceutical intermediates. Certificates of Analysis (COA) detailing all test results are provided to guarantee traceability and compliance with relevant standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
Related Substances (HPLC)	Individual impurity ≤ 2.0%; Total impurities ≤ 5.0%

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