Description

Lysine Cephalexin CAS NO 57683-74-6 is a lysine salt derivative of the first-generation cephalosporin antibiotic, Cephalexin. This formulation is designed to enhance the stability and handling characteristics of the active pharmaceutical ingredient. It is primarily utilized in the pharmaceutical industry for the development and manufacturing of antibiotic formulations. Key sectors requiring this compound include veterinary medicine and human pharmaceutical production for combating bacterial infections.

Application

• Active Pharmaceutical Ingredient (API) in antibiotic formulations for human use.
• Key intermediate in the production of veterinary medicinal products.
• Raw material for pharmaceutical research and development (R&D) of new dosage forms.
• Reference standard in quality control laboratories for analytical testing.
• Manufacturing of oral solid dosage forms such as tablets and capsules.
• Component in pre-mix formulations for animal feed additives (where approved).

Basic Information

Product Name	Lysine Cephalexin
CAS No.	57683-74-6
Molecular Formula	C16H19N3O4S • C6H14N2O2
Molecular Weight	476.53 g/mol
Synonyms	Cephalexin Lysinate; Cephalexin L-Lysine Salt; (6R,7R)-7-[[(2R)-2-Amino-2-phenylacetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid lysine salt; Lysine Salt of Cephalexin; Cephalexin Monolysinate; Cefalexin Lysine; Cephalesin Lysine Salt
EINECS	Contact for details

Quality Control

Our Lysine Cephalexin is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for pharmaceutical applications. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Identification (HPLC)	Conforms
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Water Content (KF)	≤ 5.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 1.0%
Residual Solvents (GC)	Complies with ICH guidelines
pH (in solution)	4.5 - 6.5

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