Description

Ampicillin CAS NO 2197189-82-3 is a broad-spectrum semi-synthetic β-lactam antibiotic belonging to the aminopenicillin class. It is a critical active pharmaceutical ingredient (API) valued for its bactericidal activity against a wide range of Gram-positive and Gram-negative organisms. This compound is essential for the formulation of injectable and oral pharmaceutical products, serving the global pharmaceutical manufacturing, veterinary medicine, and research sectors.

Application

• Pharmaceutical API: Primary use as the active ingredient in the manufacture of generic and branded antibiotic formulations, including capsules, tablets, and injectable solutions.
• Veterinary Medicine: Formulation of antibiotics for the treatment of bacterial infections in livestock, companion animals, and aquaculture.
• Research & Development: Utilized as a standard or reference compound in microbiological studies, antibiotic resistance research, and pharmacological assays.
• Cell Culture: Used in selective media for bacterial transformation and cloning procedures in molecular biology and genetic engineering laboratories.
• Intermediate Synthesis: Serves as a key starting material or intermediate for the synthesis of more complex antibiotic derivatives and prodrugs.

Basic Information

Product Name	Ampicillin
CAS No.	2197189-82-3
Molecular Formula	C16H19N3O4S
Molecular Weight	349.41 g/mol
Synonyms	(2S,5R,6R)-6-[[(2R)-2-Amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid; D-(-)-α-Aminobenzylpenicillin; Ampicillin Anhydrous; Ampicillin Free Acid; BRL-1341; Penbritin; Omnipen; Principen; Binotal; Amcill
EINECS	Contact for details

Quality Control

Our Ampicillin is manufactured under strict quality management systems. We offer grades compliant with major pharmacopoeial standards, including USP, EP, and BP. Every batch undergoes rigorous analytical testing for identity, purity, and potency. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to ensure full traceability and regulatory compliance for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White or almost white, crystalline powder
Identification (IR)	Conforms
Identification (HPLC)	Conforms
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Water (KF)	≤ 2.0%
pH (1% suspension)	3.5 - 5.5
Specific Optical Rotation	+280° to +305°
Related Substances (HPLC)	Total impurities ≤ 2.0% Any individual impurity ≤ 1.0%
Residual Solvents (GC)	Complies with ICH Q3C
Bacterial Endotoxins	< 0.25 EU/mg (for injectable grade)
Sterility	Sterile (for sterile grade)

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