Description

Dl-Ampicillin CAS NO 33993-48-5 is a semi-synthetic penicillin antibiotic, specifically the racemic mixture of the D- and L- isomers of ampicillin. This compound serves as a critical intermediate and reference standard in pharmaceutical research and development, enabling the study of antibiotic activity and resistance mechanisms. It is essential for manufacturers and R&D laboratories in the pharmaceutical and biotechnology sectors focused on developing and testing new antibacterial agents.

Application

• Pharmaceutical Intermediate: A key starting material or intermediate in the synthesis of advanced antibiotic formulations and novel β-lactam compounds.
• Research & Development: Used as a biochemical tool and reference standard in microbiological and pharmacological studies to investigate antibacterial efficacy and mechanism of action.
• Analytical Standard: Serves as a high-purity certified reference material (CRM) for quality control testing, method validation, and calibration in analytical laboratories.
• Microbiology Studies: Employed in in-vitro assays to study bacterial growth inhibition, minimum inhibitory concentration (MIC) determination, and resistance profiling.
• Academic Research: Utilized in university and institutional labs for educational purposes and fundamental research in medicinal chemistry and infectious diseases.

Basic Information

Product Name	Dl-Ampicillin
CAS No.	33993-48-5
Molecular Formula	C16H19N3O4S
Molecular Weight	349.41 g/mol
Synonyms	(±)-Ampicillin; D,L-Ampicillin; Ampicillin Racemate; 6-[D(-)-α-Aminophenylacetamido]penicillanic Acid Racemate; (2S,5R,6R)-6-[(R)-2-Amino-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid Racemate; NSC 528986; Binotal (racemic form); Penbritin (racemic form)
EINECS	Contact for details

Quality Control

Our Dl-Ampicillin is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, identification by IR and NMR spectroscopy, and tests for related substances and residual solvents. We provide full traceability and Certificates of Analysis (COA) are available upon request to ensure compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider desiccants or inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Residue on Ignition	≤ 0.1%

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